diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index e5e42757c16..9dcc338ee94 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -108547,6 +108547,18 @@
      {}
     ]
    ],
+   "css/css-backgrounds/table-cell-background-local.html": [
+    [
+     "/css/css-backgrounds/table-cell-background-local.html",
+     [
+      [
+       "/css/css-backgrounds/table-cell-background-local-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-backgrounds/ttwf-reftest-borderRadius.html": [
     [
      "/css/css-backgrounds/ttwf-reftest-borderRadius.html",
@@ -140587,6 +140599,18 @@
      {}
     ]
    ],
+   "css/css-text/tab-size/tab-size-spacing-001.html": [
+    [
+     "/css/css-text/tab-size/tab-size-spacing-001.html",
+     [
+      [
+       "/css/css-text/tab-size/tab-size-spacing-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-text/text-align/text-align-006.html": [
     [
      "/css/css-text/text-align/text-align-006.html",
@@ -201705,6 +201729,16 @@
      {}
     ]
    ],
+   "animation-worklet/common.js": [
+    [
+     {}
+    ]
+   ],
+   "animation-worklet/resources/animator-iframe.html": [
+    [
+     {}
+    ]
+   ],
    "annotation-model/.editorconfig": [
     [
      {}
@@ -253895,6 +253929,11 @@
      {}
     ]
    ],
+   "css/css-backgrounds/table-cell-background-local-ref.html": [
+    [
+     {}
+    ]
+   ],
    "css/css-box/META.yml": [
     [
      {}
@@ -271315,6 +271354,11 @@
      {}
     ]
    ],
+   "css/css-text/tab-size/tab-size-spacing-001-ref.html": [
+    [
+     {}
+    ]
+   ],
    "css/css-text/text-align/reference/text-align-end-ref-001.html": [
     [
      {}
@@ -303675,6 +303719,16 @@
      {}
     ]
    ],
+   "portals/resources/portal-activate-event-portal.html": [
+    [
+     {}
+    ]
+   ],
+   "portals/resources/portal-activate-event-window.html": [
+    [
+     {}
+    ]
+   ],
    "portals/resources/postmessage-referrer.sub.html": [
     [
      {}
@@ -311920,31 +311974,11 @@
      {}
     ]
    ],
-   "signed-exchange/resources/check-cert-request.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/check-cert-request.sxg.headers": [
-    [
-     {}
-    ]
-   ],
    "signed-exchange/resources/failure.html": [
     [
      {}
     ]
    ],
-   "signed-exchange/resources/fallback-to-another-sxg.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/fallback-to-another-sxg.sxg.headers": [
-    [
-     {}
-    ]
-   ],
    "signed-exchange/resources/generate-test-certs.sh": [
     [
      {}
@@ -311960,96 +311994,71 @@
      {}
     ]
    ],
-   "signed-exchange/resources/nested-sxg.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/nested-sxg.sxg.headers": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-head-request.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-head-request.sxg.headers": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-inner-url-bom.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-inner-url-bom.sxg.headers": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-invalid-utf8-inner-url.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-invalid-utf8-inner-url.sxg.headers": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-invalid-validity-url.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-invalid-validity-url.sxg.headers": [
-    [
-     {}
-    ]
-   ],
    "signed-exchange/resources/sxg-location.html": [
     [
      {}
     ]
    ],
-   "signed-exchange/resources/sxg-location.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-location.sxg.headers": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-noncacheable.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-noncacheable.sxg.headers": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-utf8-inner-url.sxg": [
-    [
-     {}
-    ]
-   ],
-   "signed-exchange/resources/sxg-utf8-inner-url.sxg.headers": [
-    [
-     {}
-    ]
-   ],
    "signed-exchange/resources/sxg-util.js": [
     [
      {}
     ]
    ],
+   "signed-exchange/resources/sxg/__dir__.headers": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/check-cert-request.sxg": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/fallback-to-another-sxg.sxg": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/nested-sxg.sxg": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/sxg-head-request.sxg": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/sxg-inner-url-bom.sxg": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/sxg-invalid-utf8-inner-url.sxg": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/sxg-invalid-validity-url.sxg": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/sxg-location.sxg": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/sxg-noncacheable.sxg": [
+    [
+     {}
+    ]
+   ],
+   "signed-exchange/resources/sxg/sxg-utf8-inner-url.sxg": [
+    [
+     {}
+    ]
+   ],
    "speech-api/META.yml": [
     [
      {}
@@ -320875,21 +320884,46 @@
      {}
     ]
    ],
+   "upgrade-insecure-requests/support/generate.py": [
+    [
+     {}
+    ]
+   ],
    "upgrade-insecure-requests/support/pass.png": [
     [
      {}
     ]
    ],
+   "upgrade-insecure-requests/support/pass.png.headers": [
+    [
+     {}
+    ]
+   ],
    "upgrade-insecure-requests/support/post-origin-to-parent.html": [
     [
      {}
     ]
    ],
+   "upgrade-insecure-requests/support/redirect-cors.py": [
+    [
+     {}
+    ]
+   ],
    "upgrade-insecure-requests/support/testharness-helper.sub.js": [
     [
      {}
     ]
    ],
+   "upgrade-insecure-requests/support/worker.js": [
+    [
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/support/worker.js.headers": [
+    [
+     {}
+    ]
+   ],
    "url/META.yml": [
     [
      {}
@@ -334750,6 +334784,12 @@
      {}
     ]
    ],
+   "animation-worklet/animation-worklet-inside-iframe.https.html": [
+    [
+     "/animation-worklet/animation-worklet-inside-iframe.https.html",
+     {}
+    ]
+   ],
    "animation-worklet/idlharness.any.js": [
     [
      "/animation-worklet/idlharness.any.html",
@@ -334760,6 +334800,24 @@
      {}
     ]
    ],
+   "animation-worklet/scroll-timeline-writing-modes.https.html": [
+    [
+     "/animation-worklet/scroll-timeline-writing-modes.https.html",
+     {}
+    ]
+   ],
+   "animation-worklet/worklet-animation-with-fill-mode.https.html": [
+    [
+     "/animation-worklet/worklet-animation-with-fill-mode.https.html",
+     {}
+    ]
+   ],
+   "animation-worklet/worklet-animation-with-invalid-effect.https.html": [
+    [
+     "/animation-worklet/worklet-animation-with-invalid-effect.https.html",
+     {}
+    ]
+   ],
    "apng/supported-in-source-type.html": [
     [
      "/apng/supported-in-source-type.html",
@@ -336982,6 +337040,12 @@
      {}
     ]
    ],
+   "content-security-policy/form-action/form-action-src-javascript-prevented.html": [
+    [
+     "/content-security-policy/form-action/form-action-src-javascript-prevented.html",
+     {}
+    ]
+   ],
    "content-security-policy/form-action/form-action-src-redirect-allowed-target-blank.sub.html": [
     [
      "/content-security-policy/form-action/form-action-src-redirect-allowed-target-blank.sub.html",
@@ -342196,6 +342260,18 @@
      {}
     ]
    ],
+   "css/css-flexbox/hittest-overlapping-margin.html": [
+    [
+     "/css/css-flexbox/hittest-overlapping-margin.html",
+     {}
+    ]
+   ],
+   "css/css-flexbox/hittest-overlapping-relative.html": [
+    [
+     "/css/css-flexbox/hittest-overlapping-relative.html",
+     {}
+    ]
+   ],
    "css/css-flexbox/order_value.html": [
     [
      "/css/css-flexbox/order_value.html",
@@ -345000,6 +345076,12 @@
      {}
     ]
    ],
+   "css/css-position/position-absolute-abspos-table-dynamic.html": [
+    [
+     "/css/css-position/position-absolute-abspos-table-dynamic.html",
+     {}
+    ]
+   ],
    "css/css-position/position-absolute-in-inline-crash.html": [
     [
      "/css/css-position/position-absolute-in-inline-crash.html",
@@ -345216,6 +345298,12 @@
      {}
     ]
    ],
+   "css/css-pseudo/first-line-first-letter-insert-crash.html": [
+    [
+     "/css/css-pseudo/first-line-first-letter-insert-crash.html",
+     {}
+    ]
+   ],
    "css/css-pseudo/idlharness.html": [
     [
      "/css/css-pseudo/idlharness.html",
@@ -345546,6 +345634,96 @@
      {}
     ]
    ],
+   "css/css-scroll-snap/parsing/scroll-margin-block-invalid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-margin-block-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-margin-block-valid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-margin-block-valid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-margin-inline-invalid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-margin-inline-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-margin-inline-valid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-margin-inline-valid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-margin-invalid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-margin-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-margin-valid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-margin-valid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-padding-block-valid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-padding-block-valid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-padding-inline-valid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-padding-inline-valid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-padding-valid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-padding-valid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-snap-align-invalid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-snap-align-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-snap-align-valid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-snap-align-valid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-snap-stop-invalid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-snap-stop-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-snap-stop-valid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-snap-stop-valid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-snap-type-invalid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-snap-type-invalid.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/parsing/scroll-snap-type-valid.html": [
+    [
+     "/css/css-scroll-snap/parsing/scroll-snap-type-valid.html",
+     {}
+    ]
+   ],
    "css/css-scroll-snap/scroll-snap-type-proximity.html": [
     [
      "/css/css-scroll-snap/scroll-snap-type-proximity.html",
@@ -352260,6 +352438,12 @@
      {}
     ]
    ],
+   "css/cssom/cssom-pagerule.html": [
+    [
+     "/css/cssom/cssom-pagerule.html",
+     {}
+    ]
+   ],
    "css/cssom/cssom-ruleTypeAndOrder.html": [
     [
      "/css/cssom/cssom-ruleTypeAndOrder.html",
@@ -352876,6 +353060,12 @@
      {}
     ]
    ],
+   "css/mediaqueries/prefers-color-scheme.html": [
+    [
+     "/css/mediaqueries/prefers-color-scheme.html",
+     {}
+    ]
+   ],
    "css/mediaqueries/test_media_queries.html": [
     [
      "/css/mediaqueries/test_media_queries.html",
@@ -353914,6 +354104,12 @@
      {}
     ]
    ],
+   "dom/collections/HTMLCollection-delete.html": [
+    [
+     "/dom/collections/HTMLCollection-delete.html",
+     {}
+    ]
+   ],
    "dom/collections/HTMLCollection-empty-name.html": [
     [
      "/dom/collections/HTMLCollection-empty-name.html",
@@ -383026,12 +383222,24 @@
      {}
     ]
    ],
+   "mediacapture-record/MediaRecorder-creation.https.html": [
+    [
+     "/mediacapture-record/MediaRecorder-creation.https.html",
+     {}
+    ]
+   ],
    "mediacapture-record/MediaRecorder-destroy-script-execution.html": [
     [
      "/mediacapture-record/MediaRecorder-destroy-script-execution.html",
      {}
     ]
    ],
+   "mediacapture-record/MediaRecorder-detached-context.html": [
+    [
+     "/mediacapture-record/MediaRecorder-detached-context.html",
+     {}
+    ]
+   ],
    "mediacapture-record/MediaRecorder-disabled-tracks.https.html": [
     [
      "/mediacapture-record/MediaRecorder-disabled-tracks.https.html",
@@ -383044,6 +383252,12 @@
      {}
     ]
    ],
+   "mediacapture-record/MediaRecorder-events-and-exceptions.html": [
+    [
+     "/mediacapture-record/MediaRecorder-events-and-exceptions.html",
+     {}
+    ]
+   ],
    "mediacapture-record/MediaRecorder-stop.html": [
     [
      "/mediacapture-record/MediaRecorder-stop.html",
@@ -396908,6 +397122,12 @@
      {}
     ]
    ],
+   "portals/portal-activate-event.html": [
+    [
+     "/portals/portal-activate-event.html",
+     {}
+    ]
+   ],
    "portals/portals-host-null.html": [
     [
      "/portals/portals-host-null.html",
@@ -407388,6 +407608,12 @@
      {}
     ]
    ],
+   "resource-timing/resource_connection_reuse.https.html": [
+    [
+     "/resource-timing/resource_connection_reuse.https.html",
+     {}
+    ]
+   ],
    "resource-timing/resource_dedicated_worker.html": [
     [
      "/resource-timing/resource_dedicated_worker.html",
@@ -413340,6 +413566,42 @@
      }
     ]
    ],
+   "upgrade-insecure-requests/animation-worklet-import-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/animation-worklet-import-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/animation-worklet-redirect-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/animation-worklet-redirect-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/animation-worklet-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/animation-worklet-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/audio-worklet-import-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/audio-worklet-import-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/audio-worklet-redirect-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/audio-worklet-redirect-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/audio-worklet-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/audio-worklet-upgrade.https.html",
+     {}
+    ]
+   ],
    "upgrade-insecure-requests/iframe-redirect-upgrade.https.html": [
     [
      "/upgrade-insecure-requests/iframe-redirect-upgrade.https.html",
@@ -413364,6 +413626,24 @@
      {}
     ]
    ],
+   "upgrade-insecure-requests/layout-worklet-import-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/layout-worklet-import-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/layout-worklet-redirect-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/layout-worklet-redirect-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/layout-worklet-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/layout-worklet-upgrade.https.html",
+     {}
+    ]
+   ],
    "upgrade-insecure-requests/link-upgrade.sub.https.html": [
     [
      "/upgrade-insecure-requests/link-upgrade.sub.https.html",
@@ -413372,12 +413652,72 @@
      }
     ]
    ],
+   "upgrade-insecure-requests/module-worker-import-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/module-worker-import-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/module-worker-redirect-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/module-worker-redirect-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/module-worker-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/module-worker-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/paint-worklet-import-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/paint-worklet-import-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/paint-worklet-redirect-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/paint-worklet-redirect-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/paint-worklet-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/paint-worklet-upgrade.https.html",
+     {}
+    ]
+   ],
    "upgrade-insecure-requests/websocket-upgrade.https.html": [
     [
      "/upgrade-insecure-requests/websocket-upgrade.https.html",
      {}
     ]
    ],
+   "upgrade-insecure-requests/worker-redirect-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/worker-redirect-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/worker-subresource-fetch-redirect-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/worker-subresource-fetch-redirect-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/worker-subresource-fetch-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/worker-subresource-fetch-upgrade.https.html",
+     {}
+    ]
+   ],
+   "upgrade-insecure-requests/worker-upgrade.https.html": [
+    [
+     "/upgrade-insecure-requests/worker-upgrade.https.html",
+     {}
+    ]
+   ],
    "url/a-element-origin-xhtml.xhtml": [
     [
      "/url/a-element-origin-xhtml.xhtml",
@@ -417843,7 +418183,9 @@
    "webrtc/RTCRtpReceiver-getSynchronizationSources.https.html": [
     [
      "/webrtc/RTCRtpReceiver-getSynchronizationSources.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "webrtc/RTCRtpSender-getCapabilities.html": [
@@ -421100,12 +421442,6 @@
      {}
     ]
    ],
-   "webxr/xrSession_device.https.html": [
-    [
-     "/webxr/xrSession_device.https.html",
-     {}
-    ]
-   ],
    "webxr/xrSession_end.https.html": [
     [
      "/webxr/xrSession_end.https.html",
@@ -422495,7 +422831,9 @@
    "worklets/layout-worklet-csp.https.html": [
     [
      "/worklets/layout-worklet-csp.https.html",
-     {}
+     {
+      "timeout": "long"
+     }
     ]
    ],
    "worklets/layout-worklet-import.https.html": [
@@ -452977,10 +453315,34 @@
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+  ],
+  "upgrade-insecure-requests/support/worker.js": [
+   "7e2168bcc06e0dd0832f42c28ef9ba3f7c2d84bf",
+   "support"
+  ],
+  "upgrade-insecure-requests/support/worker.js.headers": [
+   "cb762eff806849df46dc758ef7b98b63f27f54c9",
    "support"
   ],
   "upgrade-insecure-requests/websocket-upgrade.https.html": [
    "aa7237db82b7c57be11f4b362c98314ea0cb0042",
    "testharness"
   ],
+  "upgrade-insecure-requests/worker-redirect-upgrade.https.html": [
+   "19fbb1fc5af3b45817381587da8d701f5f0d790c",
+   "testharness"
+  ],
+  "upgrade-insecure-requests/worker-subresource-fetch-redirect-upgrade.https.html": [
+   "91ff96d978c3ba8e5e1f01b3a284d2f3d4d7bfb2",
+   "testharness"
+  ],
+  "upgrade-insecure-requests/worker-subresource-fetch-upgrade.https.html": [
+   "9fb4f853452ce9ffe795c803e22d18b1cb54c311",
+   "testharness"
+  ],
+  "upgrade-insecure-requests/worker-upgrade.https.html": [
+   "9f2cea16b93510c9679eb7cbd27662b4d51fbf22",
+   "testharness"
+  ],
   "url/META.yml": [
    "3a789a0d513f0a78bf362dd73c8a807d0cd55a50",
    "support"
@@ -678262,7 +678820,7 @@
    "testharness"
   ],
   "web-animations/interfaces/Animatable/getAnimations.html": [
-   "182b5cbe533c20c399be2fadf71e65962860dcd6",
+   "430aa4c15ccadb26f1f90032fd5042b625807dd4",
    "testharness"
   ],
   "web-animations/interfaces/Animation/cancel.html": [
@@ -680446,7 +681004,7 @@
    "support"
   ],
   "webdriver/tests/new_session/timeouts.py": [
-   "c5adb9396819beb03d4627ef9890958fb687b58d",
+   "4f2652bba86ce67eb6f6e0c42ee4d2e2685f113e",
    "wdspec"
   ],
   "webdriver/tests/perform_actions/__init__.py": [
@@ -680594,7 +681152,7 @@
    "support"
   ],
   "webdriver/tests/set_timeouts/set.py": [
-   "a78ab2e68e82ba28c15748bb98239b3d232dc9f1",
+   "4fbe83bf01b3de64436aa110ae1959bff80740b3",
    "wdspec"
   ],
   "webdriver/tests/set_timeouts/user_prompts.py": [
@@ -680666,7 +681224,7 @@
    "support"
   ],
   "webdriver/tests/switch_to_frame/switch.py": [
-   "10948102239df61f0fd35fc157fe31b1a3e2968a",
+   "67b855a96d963ab03efa9495052767ec033b346f",
    "wdspec"
   ],
   "webdriver/tests/switch_to_parent_frame/__init__.py": [
@@ -680698,7 +681256,7 @@
    "wdspec"
   ],
   "webdriver/tests/take_screenshot/__init__.py": [
-   "13d7a623eda6a909c5fb3508f478ed989ac15907",
+   "fe057a4932ef8202a685d4b580e6c49d67a40c1d",
    "support"
   ],
   "webdriver/tests/take_screenshot/screenshot.py": [
@@ -681606,7 +682164,7 @@
    "testharness"
   ],
   "webrtc/RTCRtpReceiver-getSynchronizationSources.https.html": [
-   "80685580e227ec7116ad8fa6cf8855be66d20d45",
+   "36460b479903231e15427f303f15c3b6a3de16e8",
    "testharness"
   ],
   "webrtc/RTCRtpSender-getCapabilities.html": [
@@ -686165,10 +686723,6 @@
    "4f4b8dfe5ff47b4433f0de0d244b12dd434eaa0d",
    "testharness"
   ],
-  "webxr/xrSession_device.https.html": [
-   "0b482f55a880bc268e7078b419c90b2d617113d8",
-   "testharness"
-  ],
   "webxr/xrSession_end.https.html": [
    "69bbda85fda9f732a0d682cf57be53115eb73854",
    "testharness"
@@ -687590,7 +688144,7 @@
    "testharness"
   ],
   "worklets/layout-worklet-csp.https.html": [
-   "854df8c8e18a1370cc78962e0ca198af2910b8b2",
+   "a670f802654efd220e2f7b693acabf0dfa3df923",
    "testharness"
   ],
   "worklets/layout-worklet-import.https.html": [
@@ -687638,7 +688192,7 @@
    "support"
   ],
   "worklets/resources/csp-tests.js": [
-   "d2ca05f399829122136f00a720106e3dc1875c47",
+   "ab698d0efd50e25384005194e02a1a30b4bd3e77",
    "support"
   ],
   "worklets/resources/empty-worklet-script-with-cors-header.js": [
@@ -688182,7 +688736,7 @@
    "testharness"
   ],
   "xhr/formdata.htm": [
-   "1f69de4e2813a1bbcca9ed37cb76d783d575c7c6",
+   "65a5d29c6714d25bfcf97e39f04ae2f7f04de761",
    "testharness"
   ],
   "xhr/getallresponseheaders-cookies.htm": [
diff --git a/tests/wpt/metadata/css/css-flexbox/hittest-overlapping-margin.html.ini b/tests/wpt/metadata/css/css-flexbox/hittest-overlapping-margin.html.ini
new file mode 100644
index 00000000000..9bbd2c894b7
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/hittest-overlapping-margin.html.ini
@@ -0,0 +1,4 @@
+[hittest-overlapping-margin.html]
+  [Flexboxes should perform hit testing in reverse paint order for overlapping elements: negative margin case (crbug.com/844505)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-flexbox/hittest-overlapping-relative.html.ini b/tests/wpt/metadata/css/css-flexbox/hittest-overlapping-relative.html.ini
new file mode 100644
index 00000000000..695225a3e9b
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/hittest-overlapping-relative.html.ini
@@ -0,0 +1,4 @@
+[hittest-overlapping-relative.html]
+  [Flexboxes should perform hit testing in reverse paint order for overlapping elements: relative case (crbug.com/844505)]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-fonts/variations/at-font-face-font-matching.html.ini b/tests/wpt/metadata/css/css-fonts/variations/at-font-face-font-matching.html.ini
index 7851ab8dfa8..e4fe394dc42 100644
--- a/tests/wpt/metadata/css/css-fonts/variations/at-font-face-font-matching.html.ini
+++ b/tests/wpt/metadata/css/css-fonts/variations/at-font-face-font-matching.html.ini
@@ -332,3 +332,6 @@
   [Matching font-style: 'oblique -21deg' should prefer 'oblique 30deg 60deg' over 'oblique 40deg 50deg']
     expected: FAIL
 
+  [Matching font-weight: '430' should prefer '500' over '400 425']
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/tab-size/tab-size-spacing-001.html.ini b/tests/wpt/metadata/css/css-text/tab-size/tab-size-spacing-001.html.ini
new file mode 100644
index 00000000000..5624b971579
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/tab-size/tab-size-spacing-001.html.ini
@@ -0,0 +1,2 @@
+[tab-size-spacing-001.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/cssom/cssom-pagerule.html.ini b/tests/wpt/metadata/css/cssom/cssom-pagerule.html.ini
new file mode 100644
index 00000000000..54066529115
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom/cssom-pagerule.html.ini
@@ -0,0 +1,19 @@
+[cssom-pagerule.html]
+  [Set selectorText to named page after rule was removed]
+    expected: FAIL
+
+  [Sanity checks]
+    expected: FAIL
+
+  [Page selector is initially the empty string]
+    expected: FAIL
+
+  [Set selectorText to :left pseudo page]
+    expected: FAIL
+
+  [Set selectorText to named page]
+    expected: FAIL
+
+  [Set selectorText to named page with :first pseudo page]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/mediaqueries/prefers-color-scheme.html.ini b/tests/wpt/metadata/css/mediaqueries/prefers-color-scheme.html.ini
new file mode 100644
index 00000000000..bb52daa7836
--- /dev/null
+++ b/tests/wpt/metadata/css/mediaqueries/prefers-color-scheme.html.ini
@@ -0,0 +1,4 @@
+[prefers-color-scheme.html]
+  [prefers-color-scheme]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/dom/collections/HTMLCollection-delete.html.ini b/tests/wpt/metadata/dom/collections/HTMLCollection-delete.html.ini
new file mode 100644
index 00000000000..cac186fcfca
--- /dev/null
+++ b/tests/wpt/metadata/dom/collections/HTMLCollection-delete.html.ini
@@ -0,0 +1,7 @@
+[HTMLCollection-delete.html]
+  [Strict name]
+    expected: FAIL
+
+  [Strict id]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/dom/events/Event-dispatch-click.html.ini b/tests/wpt/metadata/dom/events/Event-dispatch-click.html.ini
index 5daa842571a..be409a414f9 100644
--- a/tests/wpt/metadata/dom/events/Event-dispatch-click.html.ini
+++ b/tests/wpt/metadata/dom/events/Event-dispatch-click.html.ini
@@ -11,7 +11,7 @@
     expected: FAIL
 
   [pick the first with activation behavior <a href>]
-    expected: FAIL
+    expected: TIMEOUT
 
   [event state during post-click handling]
     expected: TIMEOUT
diff --git a/tests/wpt/metadata/encoding/encodeInto.any.js.ini b/tests/wpt/metadata/encoding/encodeInto.any.js.ini
index aef7fbebc07..00c9ca32479 100644
--- a/tests/wpt/metadata/encoding/encodeInto.any.js.ini
+++ b/tests/wpt/metadata/encoding/encodeInto.any.js.ini
@@ -128,6 +128,99 @@
   [encodeInto() with A and destination length 10, offset 4, filler random]
     expected: FAIL
 
+  [encodeInto() with 𝌆A and destination length 3, offset 4, filler 128]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 4, filler 128]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() and a detached output buffer]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 4, filler 128]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 4, filler 128]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 4, filler 128]
+    expected: FAIL
+
 
 [encodeInto.any.worker.html]
   [encodeInto() with 𝌆A and destination length 3, offset 4, filler 128]
@@ -259,3 +352,96 @@
   [encodeInto() with A and destination length 10, offset 4, filler random]
     expected: FAIL
 
+  [encodeInto() with 𝌆A and destination length 3, offset 4, filler 128]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 4, filler 128]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() and a detached output buffer]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 4, filler 128]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 4, filler 128]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 0, filler random]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with A� and destination length 4, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with �A�A¥Hi and destination length 10, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with ¥¥ and destination length 4, offset 0, filler 0]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 0, filler 128]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 4, filler 0]
+    expected: FAIL
+
+  [encodeInto() with 𝌆A and destination length 3, offset 4, filler random]
+    expected: FAIL
+
+  [encodeInto() with 𝌆 and destination length 4, offset 4, filler 128]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/encoding/idlharness.any.js.ini b/tests/wpt/metadata/encoding/idlharness.any.js.ini
index eeec0c9a846..33154a7b0ab 100644
--- a/tests/wpt/metadata/encoding/idlharness.any.js.ini
+++ b/tests/wpt/metadata/encoding/idlharness.any.js.ini
@@ -73,6 +73,15 @@
   [TextDecoderStream interface: attribute writable]
     expected: FAIL
 
+  [TextEncoder interface: calling encodeInto(USVString, Uint8Array) on new TextEncoder() with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [TextEncoder interface: new TextEncoder() must inherit property "encodeInto(USVString, Uint8Array)" with the proper type]
+    expected: FAIL
+
+  [TextEncoder interface: operation encodeInto(USVString, Uint8Array)]
+    expected: FAIL
+
 
 [idlharness.any.worker.html]
   [Untitled]
@@ -141,6 +150,15 @@
   [TextDecoderStream interface: attribute writable]
     expected: FAIL
 
+  [TextEncoder interface: calling encodeInto(USVString, Uint8Array) on new TextEncoder() with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [TextEncoder interface: new TextEncoder() must inherit property "encodeInto(USVString, Uint8Array)" with the proper type]
+    expected: FAIL
+
+  [TextEncoder interface: operation encodeInto(USVString, Uint8Array)]
+    expected: FAIL
+
 
 [idlharness.any.serviceworker.html]
   [idlharness]
diff --git a/tests/wpt/metadata/encoding/single-byte-decoder.html.ini b/tests/wpt/metadata/encoding/single-byte-decoder.html.ini
index 83141496741..3d93107d096 100644
--- a/tests/wpt/metadata/encoding/single-byte-decoder.html.ini
+++ b/tests/wpt/metadata/encoding/single-byte-decoder.html.ini
@@ -32,7 +32,7 @@
 
 
 [single-byte-decoder.html?XMLHttpRequest]
-  expected: TIMEOUT
+  expected: CRASH
   [ISO-8859-2: iso_8859-2:1987 (XMLHttpRequest)]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/encoding/streams/decode-bad-chunks.any.js.ini b/tests/wpt/metadata/encoding/streams/decode-bad-chunks.any.js.ini
index 061433df212..935cc74fc1a 100644
--- a/tests/wpt/metadata/encoding/streams/decode-bad-chunks.any.js.ini
+++ b/tests/wpt/metadata/encoding/streams/decode-bad-chunks.any.js.ini
@@ -2,15 +2,59 @@
   [decode-bad-chunks]
     expected: FAIL
 
+  [chunk of type undefined should error the stream]
+    expected: FAIL
+
+  [chunk of type array should error the stream]
+    expected: FAIL
+
+  [chunk of type null should error the stream]
+    expected: FAIL
+
+  [chunk of type object, not BufferSource should error the stream]
+    expected: FAIL
+
+  [chunk of type numeric should error the stream]
+    expected: FAIL
+
+  [chunk of type SharedArrayBuffer should error the stream]
+    expected: FAIL
+
+  [chunk of type shared Uint8Array should error the stream]
+    expected: FAIL
+
 
 [decode-bad-chunks.any.worker.html]
   [decode-bad-chunks]
     expected: FAIL
 
+  [chunk of type undefined should error the stream]
+    expected: FAIL
+
+  [chunk of type array should error the stream]
+    expected: FAIL
+
+  [chunk of type null should error the stream]
+    expected: FAIL
+
+  [chunk of type object, not BufferSource should error the stream]
+    expected: FAIL
+
+  [chunk of type numeric should error the stream]
+    expected: FAIL
+
+  [chunk of type SharedArrayBuffer should error the stream]
+    expected: FAIL
+
+  [chunk of type shared Uint8Array should error the stream]
+    expected: FAIL
+
+
 [decode-bad-chunks.any.serviceworker.html]
   [decode-bad-chunks]
     expected: FAIL
 
+
 [decode-bad-chunks.any.sharedworker.html]
   [decode-bad-chunks]
     expected: FAIL
diff --git a/tests/wpt/metadata/encoding/streams/decode-utf8.any.js.ini b/tests/wpt/metadata/encoding/streams/decode-utf8.any.js.ini
index 73f5ad9d0d5..a5db82ea387 100644
--- a/tests/wpt/metadata/encoding/streams/decode-utf8.any.js.ini
+++ b/tests/wpt/metadata/encoding/streams/decode-utf8.any.js.ini
@@ -2,6 +2,7 @@
   [decode-utf8]
     expected: FAIL
 
+
 [decode-utf8.any.sharedworker.html]
   [decode-utf8]
     expected: FAIL
@@ -20,6 +21,12 @@
   [an initial empty chunk should be ignored]
     expected: FAIL
 
+  [decoding a transferred Uint8Array chunk should give no output]
+    expected: FAIL
+
+  [decoding a transferred ArrayBuffer chunk should give no output]
+    expected: FAIL
+
 
 [decode-utf8.any.worker.html]
   [decoding one UTF-8 chunk should give one output string]
@@ -34,3 +41,9 @@
   [an initial empty chunk should be ignored]
     expected: FAIL
 
+  [decoding a transferred Uint8Array chunk should give no output]
+    expected: FAIL
+
+  [decoding a transferred ArrayBuffer chunk should give no output]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
deleted file mode 100644
index 51f8272a6de..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_3.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_3.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
similarity index 71%
rename from tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
rename to tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
index 75d75b4cda2..dc2e45516de 100644
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_2.html.ini
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_5.html.ini
@@ -1,4 +1,4 @@
-[traverse_the_history_2.html]
+[traverse_the_history_5.html]
   [Multiple history traversals, last would be aborted]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/environment-changes/viewport-change.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/environment-changes/viewport-change.html.ini
index bed3bccce25..e16c5dbd9b0 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/environment-changes/viewport-change.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/environment-changes/viewport-change.html.ini
@@ -5,7 +5,7 @@
     expected: TIMEOUT
 
   [picture: source (max-width:500px) valid image, img valid image, resize to wide]
-    expected: TIMEOUT
+    expected: FAIL
 
   [picture: source (max-width:500px) valid image, img broken image, resize to narrow]
     expected: TIMEOUT
@@ -13,3 +13,12 @@
   [picture: source (max-width:500px) valid image, img valid image, resize to narrow]
     expected: FAIL
 
+  [picture: source (max-width:500px) broken image, img valid image, resize to narrow]
+    expected: FAIL
+
+  [img (srcset 1 cand) valid image, resize to narrow]
+    expected: FAIL
+
+  [picture: same URL in source (max-width:500px) and img, resize to narrow]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
deleted file mode 100644
index 8cc42056d34..00000000000
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[non-active-document.html]
-  [DOMParser]
-    expected: FAIL
-
-  [createHTMLDocument]
-    expected: FAIL
-
-  [<template>]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini b/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini
new file mode 100644
index 00000000000..9e522297c94
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/interactive-elements/the-details-element/toggleEvent.html.ini
@@ -0,0 +1,7 @@
+[toggleEvent.html]
+  [Calling open twice on 'details' fires only one toggle event]
+    expected: FAIL
+
+  [Setting open=true to opened 'details' element should not fire a toggle event at the 'details' element]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/performance-timeline/idlharness.any.js.ini b/tests/wpt/metadata/performance-timeline/idlharness.any.js.ini
index 948bb9b38b8..42b4bda7284 100644
--- a/tests/wpt/metadata/performance-timeline/idlharness.any.js.ini
+++ b/tests/wpt/metadata/performance-timeline/idlharness.any.js.ini
@@ -25,6 +25,12 @@
   [PerformanceObserver interface: attribute supportedEntryTypes]
     expected: FAIL
 
+  [PerformanceMark interface: attribute detail]
+    expected: FAIL
+
+  [PerformanceMark interface: mark must inherit property "detail" with the proper type]
+    expected: FAIL
+
 
 [idlharness.any.html]
   [Untitled]
@@ -48,6 +54,12 @@
   [PerformanceObserver interface: attribute supportedEntryTypes]
     expected: FAIL
 
+  [PerformanceMark interface: attribute detail]
+    expected: FAIL
+
+  [PerformanceMark interface: mark must inherit property "detail" with the proper type]
+    expected: FAIL
+
 
 [idlharness.https.any.serviceworker.html]
   type: testharness
diff --git a/tests/wpt/metadata/resource-timing/resource_connection_reuse.https.html.ini b/tests/wpt/metadata/resource-timing/resource_connection_reuse.https.html.ini
new file mode 100644
index 00000000000..a891f97d483
--- /dev/null
+++ b/tests/wpt/metadata/resource-timing/resource_connection_reuse.https.html.ini
@@ -0,0 +1,4 @@
+[resource_connection_reuse.https.html]
+  [There should be 2 PerformanceEntries]
+    expected: FAIL
+
diff --git a/tests/wpt/mozilla/meta/mozilla/paint_timing.html.ini b/tests/wpt/mozilla/meta/mozilla/paint_timing.html.ini
deleted file mode 100644
index 14a9e778f39..00000000000
--- a/tests/wpt/mozilla/meta/mozilla/paint_timing.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[paint_timing.html]
-  [Performance entries observer]
-    expected: FAIL
-
diff --git a/tests/wpt/web-platform-tests/animation-worklet/animation-worklet-inside-iframe.https.html b/tests/wpt/web-platform-tests/animation-worklet/animation-worklet-inside-iframe.https.html
new file mode 100644
index 00000000000..cad04b281fc
--- /dev/null
+++ b/tests/wpt/web-platform-tests/animation-worklet/animation-worklet-inside-iframe.https.html
@@ -0,0 +1,56 @@
+<!DOCTYPE html>
+<title>Test that AnimationWorklet inside frames with different origin causes new global scopes</title>
+<link rel="help" href="https://drafts.css-houdini.org/css-animationworklet/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="common.js"></script>
+
+<style>
+.redbox {
+  width: 100px;
+  height: 100px;
+  background-color: #ff0000;
+}
+</style>
+
+<div id="target" class="redbox"></div>
+
+<script id="main_worklet" type="text/worklet">
+registerAnimator("duplicate_animator", class {
+  animate(currentTime, effect) {
+    effect.localTime = 500;
+  }
+});
+</script>
+
+<script>
+async_test(t => {
+  // Wait for iframe to load and start its animations.
+  window.onmessage = function(msg) {
+    window.requestAnimationFrame( _ => {
+      run_test(msg.data);
+    });
+  };
+
+  // Create and load the iframe to avoid racy cases.
+  var iframe = document.createElement('iframe');
+  iframe.src = 'resources/animator-iframe.html';
+  document.body.appendChild(iframe);
+
+  function run_test(data) {
+    runInAnimationWorklet(
+      document.getElementById('main_worklet').textContent
+    ).then(_ => {
+      // Create an animation for duplicate animator.
+      const target = document.getElementById('target');
+      const animation = new WorkletAnimation('duplicate_animator', new KeyframeEffect(target, [{ opacity: 0 }], { duration: 1000 }));
+      animation.play();
+
+      assert_equals(data, '0.4');
+      waitTwoAnimationFrames(t.step_func_done(() => {
+        assert_equals(getComputedStyle(target).opacity, '0.5');
+      }));
+    });
+  }
+}, 'Both main frame and iframe should update the opacity of their target');
+</script>
diff --git a/tests/wpt/web-platform-tests/animation-worklet/common.js b/tests/wpt/web-platform-tests/animation-worklet/common.js
new file mode 100644
index 00000000000..d029ab79491
--- /dev/null
+++ b/tests/wpt/web-platform-tests/animation-worklet/common.js
@@ -0,0 +1,33 @@
+'use strict';
+
+function registerPassthroughAnimator() {
+  return runInAnimationWorklet(`
+    registerAnimator('passthrough', class {
+      animate(currentTime, effect) { effect.localTime = currentTime; }
+    });
+  `);
+}
+
+function runInAnimationWorklet(code) {
+  return CSS.animationWorklet.addModule(
+    URL.createObjectURL(new Blob([code], {type: 'text/javascript'}))
+  );
+}
+
+function waitForAnimationFrames(count, callback) {
+  function rafCallback() {
+    if (count <= 0) {
+      callback();
+    } else {
+      count -= 1;
+      window.requestAnimationFrame(rafCallback);
+    }
+  }
+  rafCallback();
+};
+
+// Wait for two main thread frames to guarantee that compositor has produced
+// at least one frame. Note that this is a Chrome-only concept.
+function waitTwoAnimationFrames(callback) {
+  waitForAnimationFrames(2, callback);
+};
diff --git a/tests/wpt/web-platform-tests/animation-worklet/resources/animator-iframe.html b/tests/wpt/web-platform-tests/animation-worklet/resources/animator-iframe.html
new file mode 100644
index 00000000000..2a88959195c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/animation-worklet/resources/animator-iframe.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<style>
+.greenbox {
+  width: 100px;
+  height: 100px;
+  background-color: #00ff00;
+}
+</style>
+<script src="../common.js"></script>
+
+<script id="iframe_worklet" type="text/worklet">
+registerAnimator("iframe_animator", class {
+  animate(currentTime, effect) {
+    effect.localTime = 600;
+  }
+});
+registerAnimator("duplicate_animator", class {
+  animate(currentTime, effect) {
+    effect.localTime = 800;
+  }
+});
+</script>
+
+<div id="iframe_target" class="greenbox"></div>
+
+<script>
+runInAnimationWorklet(
+  document.getElementById('iframe_worklet').textContent
+).then(_ => {
+  const target = document.getElementById('iframe_target');
+  // Only create an animation for iframe_animator.
+  const effect = new KeyframeEffect(target, [{ opacity: 0 }], { duration: 1000 });
+  const animation = new WorkletAnimation('iframe_animator', effect);
+  animation.play();
+  waitTwoAnimationFrames( _ => {
+    window.parent.postMessage(getComputedStyle(target).opacity, '*');
+  });
+ });
+</script>
diff --git a/tests/wpt/web-platform-tests/animation-worklet/scroll-timeline-writing-modes.https.html b/tests/wpt/web-platform-tests/animation-worklet/scroll-timeline-writing-modes.https.html
new file mode 100644
index 00000000000..9cf99cb9202
--- /dev/null
+++ b/tests/wpt/web-platform-tests/animation-worklet/scroll-timeline-writing-modes.https.html
@@ -0,0 +1,175 @@
+<!DOCTYPE html>
+<title>Tests that ScrollTimeline works properly with writing mode and directionality</title>
+<link rel="help" href="https://drafts.css-houdini.org/css-animationworklet/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="common.js"></script>
+
+<script id="worklet_code"  type="text/worklet">
+registerAnimator("test_animator", class {
+  animate(currentTime, effect) {
+    effect.localTime = currentTime;
+  }
+});
+</script>
+
+<script>
+// Creates a DOM structure like:
+//   - container
+//     - box {100x100}
+//     - scroller {100x100, writing-mode, direction}
+//       - contents
+function createTestDOM(x_scroll_axis, writing_mode, direction) {
+  const elements = {};
+
+  elements.container = document.createElement('div');
+
+  elements.box = document.createElement('div');
+  elements.box.style.height = '100px';
+  elements.box.style.width = '100px';
+
+  elements.scroller = document.createElement('div');
+  elements.scroller.style.height = '100px';
+  elements.scroller.style.width = '100px';
+  if (x_scroll_axis)
+    elements.scroller.style.overflowX = 'scroll';
+  else
+    elements.scroller.style.overflowY = 'scroll';
+  elements.scroller.style.direction = direction;
+  elements.scroller.style.writingMode = writing_mode;
+
+  // Callers don't need access to this.
+  const contents = document.createElement('div');
+  contents.style.height = x_scroll_axis ? '100%' : '1000px';
+  contents.style.width = x_scroll_axis ? '1000px' : '100%';
+
+  elements.scroller.appendChild(contents);
+  elements.container.appendChild(elements.box);
+  elements.container.appendChild(elements.scroller);
+  document.body.appendChild(elements.container);
+
+  return elements;
+}
+
+function createAndPlayTestAnimation(elements, timeline_orientation) {
+  const effect = new KeyframeEffect(
+      elements.box,
+      [{transform: 'translateY(0)'}, {transform: 'translateY(200px)'}], {
+        duration: 1000,
+      });
+
+  const timeline = new ScrollTimeline({
+    scrollSource: elements.scroller,
+    timeRange: 1000,
+    orientation: timeline_orientation
+  });
+  const animation = new WorkletAnimation('test_animator', effect, timeline);
+  animation.play();
+}
+
+setup(setupAndRegisterTests, {explicit_done: true});
+
+function setupAndRegisterTests() {
+  const worklet_code = document.getElementById('worklet_code').textContent;
+  runInAnimationWorklet(worklet_code).then(() => {
+    // Note that block horizontal-tb is tested implicitly in the basic
+    // ScrollTimeline tests (as it is the default).
+    async_test(
+        block_vertical_lr,
+        'A block ScrollTimeline should produce the correct current time for vertical-lr');
+    async_test(
+        block_vertical_rl,
+        'A block ScrollTimeline should produce the correct current time for vertical-rl');
+    // Again, inline for horizontal-tb and direction: ltr is the default
+    // inline mode and so is tested elsewhere.
+    async_test(
+        inline_horizontal_tb_rtl,
+        'An inline ScrollTimeline should produce the correct current time for horizontal-tb and direction: rtl');
+    async_test(
+        inline_vertical_writing_mode_ltr,
+        'An inline ScrollTimeline should produce the correct current time for vertical writing mode');
+    async_test(
+        inline_vertical_writing_mode_rtl,
+        'An inline ScrollTimeline should produce the correct current time for vertical writing mode and direction: rtl');
+    done();
+  });
+}
+
+function block_vertical_lr(t) {
+  const elements = createTestDOM(true, 'vertical-lr', 'ltr');
+  createAndPlayTestAnimation(elements, 'block');
+
+  // Move the scroller to the 25% point.
+  const maxScroll =
+      elements.scroller.scrollWidth - elements.scroller.clientWidth;
+  elements.scroller.scrollLeft = 0.25 * maxScroll;
+
+  waitForAnimationFrames(3, t.step_func_done(() => {
+    assert_equals(
+        getComputedStyle(elements.box).transform, 'matrix(1, 0, 0, 1, 0, 50)');
+  }));
+}
+
+function block_vertical_rl(t) {
+  const elements = createTestDOM(true, 'vertical-rl', 'ltr');
+  createAndPlayTestAnimation(elements, 'block');
+
+  // Move the scroller to the 75% point. Since it is vertical-rl, this is
+  // equivalent to the 25% point for the ScrollTimeline.
+  const maxScroll =
+      elements.scroller.scrollWidth - elements.scroller.clientWidth;
+  elements.scroller.scrollLeft = 0.75 * maxScroll;
+
+  waitForAnimationFrames(3, t.step_func_done(() => {
+    assert_equals(
+        getComputedStyle(elements.box).transform, 'matrix(1, 0, 0, 1, 0, 50)');
+  }));
+}
+
+function inline_horizontal_tb_rtl(t) {
+  const elements = createTestDOM(true, 'horizontal-tb', 'rtl');
+  createAndPlayTestAnimation(elements, 'inline');
+
+  // Move the scroller to the 75% point. Since it is direction: rtl, this is
+  // equivalent to the 25% point for the ScrollTimeline.
+  const maxScroll =
+      elements.scroller.scrollWidth - elements.scroller.clientWidth;
+  elements.scroller.scrollLeft = 0.75 * maxScroll;
+
+  waitForAnimationFrames(3, t.step_func_done(() => {
+    assert_equals(
+        getComputedStyle(elements.box).transform, 'matrix(1, 0, 0, 1, 0, 50)');
+  }));
+}
+
+function inline_vertical_writing_mode_ltr(t) {
+  const elements = createTestDOM(false, 'vertical-lr', 'ltr');
+  createAndPlayTestAnimation(elements, 'inline');
+
+  // Move the scroller to the 25% point.
+  const maxScroll =
+      elements.scroller.scrollHeight - elements.scroller.clientHeight;
+  elements.scroller.scrollTop = 0.25 * maxScroll;
+
+  waitForAnimationFrames(3, t.step_func_done(() => {
+    assert_equals(
+        getComputedStyle(elements.box).transform, 'matrix(1, 0, 0, 1, 0, 50)');
+  }));
+}
+
+function inline_vertical_writing_mode_rtl(t) {
+  const elements = createTestDOM(false, 'vertical-lr', 'rtl');
+  createAndPlayTestAnimation(elements, 'inline');
+
+  // Move the scroller to the 75% point. Since this is a vertical writing mode
+  // and direction: rtl, this is 25% of the ScrollTimeline currentTime.
+  const maxScroll =
+      elements.scroller.scrollHeight - elements.scroller.clientHeight;
+  elements.scroller.scrollTop = 0.75 * maxScroll;
+
+  waitForAnimationFrames(3, t.step_func_done(() => {
+    assert_equals(
+        getComputedStyle(elements.box).transform, 'matrix(1, 0, 0, 1, 0, 50)');
+  }));
+}
+</script>
diff --git a/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-fill-mode.https.html b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-fill-mode.https.html
new file mode 100644
index 00000000000..90abe082857
--- /dev/null
+++ b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-fill-mode.https.html
@@ -0,0 +1,107 @@
+<!DOCTYPE html>
+<title>Test that worklet animation works with different fill modes</title>
+<link rel="help" href="https://drafts.css-houdini.org/css-animationworklet/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="common.js"></script>
+
+<style>
+.target {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+</style>
+
+<script>
+function CreateTest(target, effect, verify, test_name) {
+  async_test(t => {
+   runInAnimationWorklet(
+    document.getElementById('simple_animate').textContent
+   ).then(_ => {
+    const animation = new WorkletAnimation('test_animator', effect);
+    animation.play();
+
+    waitTwoAnimationFrames(() => {
+      // waitTwoAnimationFrames guarantees a compositor frame that could update
+      // the opacity value in the worklet. Meanwhile, getComputedStyle needs an
+      // extra frame to fetch the updated value.
+      window.requestAnimationFrame(t.step_func_done(() => {
+        verify();
+        animation.cancel();
+      }));
+    });
+   });
+  }, test_name);
+}
+</script>
+<script id="simple_animate" type="text/worklet">
+registerAnimator("test_animator", class {
+  animate(currentTime, effect) {
+    effect.localTime = 2000;
+  }
+});
+</script>
+
+<div id="target1" class='target'></div>
+<div id="target2" class='target'></div>
+<div id="target3" class='target'></div>
+<div id="target4" class='target'></div>
+<div id="target5" class='target'></div>
+<div id="target6" class='target'></div>
+
+<script>
+  const effect_with_fill_forwards = new KeyframeEffect(
+      target1,
+      { opacity: [0.5, 0] },
+      { duration: 1000, fill: 'forwards' });
+  CreateTest(target1,
+      effect_with_fill_forwards,
+      function() { assert_equals(getComputedStyle(target1).opacity, '0'); },
+      "Effect with fill mode forwards in after phase produces output that is equivalent to effect's end value.");
+
+  const effect_without_fill_forwards = new KeyframeEffect(
+      target2,
+      { opacity: [0.5, 0] },
+      { duration: 1000 });
+  CreateTest(target2,
+      effect_without_fill_forwards,
+      function() { assert_equals(getComputedStyle(target2).opacity, '1'); },
+      'Effect without fill mode forwards in after phase (local time beyond end) should deactivate the animation.');
+
+  const effect_without_fill_forwards_at_end = new KeyframeEffect(
+      target3,
+      { opacity: [0.5, 0] },
+      { duration: 2000 });
+  CreateTest(target3,
+      effect_without_fill_forwards_at_end,
+      function() { assert_equals(getComputedStyle(target3).opacity, '1'); },
+      'Effect without fill mode in after phase (local time at end) should deactivate the animation.');
+
+  const effect_with_fill_backwards = new KeyframeEffect(
+      target4,
+      { opacity: [0.5, 0] },
+      { duration: 1000, delay: 2001, fill: 'backwards' });
+  CreateTest(target4,
+      effect_with_fill_backwards,
+      function() { assert_equals(getComputedStyle(target4).opacity, '0.5'); },
+      "Effect with fill mode backwards in before phase produces output that is equivalent to effect's start value.");
+
+  const effect_without_fill_backwards = new KeyframeEffect(
+      target5,
+      { opacity: [0.5, 0] },
+      { duration: 1000, delay: 2001 });
+  CreateTest(target5,
+      effect_without_fill_backwards,
+      function() { assert_equals(getComputedStyle(target5).opacity, '1'); },
+      'Effect without fill mode backwards in before phase (local time before start) should deactivate the animation.');
+
+  const effect_without_fill_backwards_at_start = new KeyframeEffect(
+      target6,
+      { opacity: [0.5, 0] },
+      { duration: 1000, delay: 2000 });
+  CreateTest(target6,
+      effect_without_fill_backwards_at_start,
+      function() { assert_equals(getComputedStyle(target6).opacity, '0.5'); },
+      'Effect with local time at start point is in active phase.');
+</script>
diff --git a/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-invalid-effect.https.html b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-invalid-effect.https.html
new file mode 100644
index 00000000000..9a7688d348d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-invalid-effect.https.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>Test that worklet animation with invalid effect cannot be played</title>
+<link rel="help" href="https://drafts.css-houdini.org/css-animationworklet/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="common.js"></script>
+
+<style>
+#target {
+  width: 100px;
+  height: 100px;
+}
+</style>
+
+<div id="target"></div>
+
+<script>
+'use strict';
+
+test(function() {
+  registerPassthroughAnimator();
+  let playFunc = function() {
+    let effect = new KeyframeEffect(
+        document.getElementById('target'),
+        [
+          // No keyframe.
+        ],
+        { duration: 1000 }
+    );
+    let animation = new WorkletAnimation('passthrough', effect);
+    animation.play();
+  }
+  assert_throws('InvalidStateError', playFunc);
+}, 'Trying to play invalid worklet animation should throw an exception.');
+</script>
diff --git a/tests/wpt/web-platform-tests/content-security-policy/form-action/form-action-src-javascript-prevented.html b/tests/wpt/web-platform-tests/content-security-policy/form-action/form-action-src-javascript-prevented.html
new file mode 100644
index 00000000000..feae47ee796
--- /dev/null
+++ b/tests/wpt/web-platform-tests/content-security-policy/form-action/form-action-src-javascript-prevented.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<meta http-equiv="Content-Security-Policy" content="form-action 'none'; script-src 'self' 'nonce-noncynonce'; connect-src 'self';">
+</head>
+
+<body>
+  <form action='/content-security-policy/support/postmessage-pass-to-opener.html'
+        id='form_id'
+        target="_blank">
+        <input type="submit" />
+  </form>
+
+  <p>
+    Test that "form-action 'none'" doesn't create a violation report if the event was prevented.
+  </p>
+</body>
+
+<script nonce='noncynonce'>
+  async_test(t => {
+    document.addEventListener('securitypolicyviolation', function(e) {
+      assert_unreached('Form submission was blocked.');
+    });
+
+    window.addEventListener('message', function(event) {
+      assert_unreached('Form submission was blocked.');
+    })
+
+    window.addEventListener("load", function() {
+      let form = document.getElementById("form_id");
+      form.addEventListener("submit", e => {
+        e.preventDefault();
+        setTimeout(() => {
+          t.done();
+        }, 0);
+      });
+      // clicking the input is used here as form.submit() will submit a form without an event and should also be blocked.
+      form.querySelector("input").click();
+    });
+  }, "The form submission should not be blocked by when javascript prevents the load.");
+</script>
+
+</html>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-001-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-001-ref.xht
index da5d1ac78ec..ecb4970a3ce 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-001-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-001-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-001.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-001.xht
index 34dd0c38085..bf5221f9e52 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-001.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-001.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-002-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-002-ref.xht
index 67fb8ea077b..3c44263ff57 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-002-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-002-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-002.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-002.xht
index 6cbbfb65c41..04343e0fc17 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-002.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-002.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-003-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-003-ref.xht
index df3238f5831..77daf0b4277 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-003-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-003-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-003.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-003.xht
index 547528b09b3..e4fda9d44b3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-003.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-003.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-004-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-004-ref.xht
index 1448920f048..787c5f64d2d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-004-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-004-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-004.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-004.xht
index f0774d75a1f..aad6b385591 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-004.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-004.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-005-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-005-ref.xht
index 6d47bf7a3a6..6eab0945c12 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-005-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-005-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-005.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-005.xht
index b172d77591e..4ee2b165037 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-005.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-005.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-006-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-006-ref.xht
index 4870a169b73..db8a9e04619 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-006-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-006-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-006.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-006.xht
index 4c097f096e5..86ba8b3bc8d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-006.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-006.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-007-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-007-ref.xht
index 2512e919718..a6ff1c35357 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-007-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-007-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-007.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-007.xht
index ed6d19de2d4..310619aa655 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-007.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-007.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-008-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-008-ref.xht
index bd55bceebc7..55b69097510 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-008-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-008-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-008.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-008.xht
index c0d277653c5..4d1ce39e044 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-008.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-008.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-009-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-009-ref.xht
index 0f7774bb1a2..88e7251d71d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-009-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-009-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-009.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-009.xht
index 5bbac248e06..3eb25a4ace9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-009.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-009.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-010-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-010-ref.xht
index 4c533921e1f..d299d38603d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-010-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-010-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-010.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-010.xht
index d8d495b8a61..4828a2c20cd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-010.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-010.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-012-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-012-ref.xht
index 2e6cf75adb3..9ac8c3c7a31 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-012-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-012-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-012.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-012.xht
index bc54d933ce5..cd779e2c6ef 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-012.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-012.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-013-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-013-ref.xht
index ada3eab2eab..5db163b94c4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-013-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-013-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-013.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-013.xht
index 2e866d82f23..16f2032d4b7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-013.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-013.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-014-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-014-ref.xht
index d60c579aab8..ff87d74f97a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-014-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-014-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-014.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-014.xht
index 29012d1b933..519ce1ef739 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-014.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-014.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-015-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-015-ref.xht
index 1300b1a9ce6..9a2edd2cc16 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-015-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-015-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-015.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-015.xht
index a163bb4d908..4130c0c4d0a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-015.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-015.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-016-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-016-ref.xht
index fc3a5609956..121ca356e79 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-016-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-016-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-016.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-016.xht
index d67042e1763..5e4963c1500 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-016.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-016.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-017-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-017-ref.xht
index eb05436a762..4c261f0a863 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-017-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-017-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-017.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-017.xht
index 12f1adbb87f..50a8e8e05a6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-017.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-017.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-018-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-018-ref.xht
index f7579a4d954..20dd9baafde 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-018-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-018-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-018.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-018.xht
index c9b4be6bb81..32bcda808d6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-018.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-018.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-019-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-019-ref.xht
index 2e6c0c24583..0221a80c82c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-019-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-019-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-019.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-019.xht
index c7149d1e0c3..77b3f003738 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-019.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-019.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-020-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-020-ref.xht
index a545e6dcc31..f4fe0d1d6ff 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-020-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-020-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-020.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-020.xht
index 6053916cc5e..83df8357f95 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-020.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-020.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-021-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-021-ref.xht
index 4886bc7e9aa..75b82592a6f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-021-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-021-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-021.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-021.xht
index 4c08096374f..0c99e124db2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-021.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-021.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-022-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-022-ref.xht
index 0a8a08749b9..5c4010ba977 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-022-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-022-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-022.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-022.xht
index 6d0c688e2e1..33ae2926c73 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-022.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-022.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-023-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-023-ref.xht
index 5923893f0ce..41e524f05e7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-023-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-023-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-023.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-023.xht
index 6d7f836d80b..98fcb7cbfaf 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-023.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-023.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-024-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-024-ref.xht
index 1fc46ed62e6..a9b9575a072 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-024-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-024-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-024.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-024.xht
index 1f0f7bd17e5..42eb92fc916 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-024.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-024.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-025-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-025-ref.xht
index 222fc39e81c..72f23ec2ee7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-025-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-025-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-025.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-025.xht
index a1efc96accf..8ba1a7031d1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-025.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-025.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-026-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-026-ref.xht
index cac540026da..938279bde5a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-026-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-026-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-026.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-026.xht
index d996ff8220f..664c41fbc38 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-026.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-026.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-027-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-027-ref.xht
index 4c973c1e560..921d80d1951 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-027-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-027-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-027.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-027.xht
index 1ecea3d5e98..2f325aacec0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-027.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-027.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-028-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-028-ref.xht
index 75fb6c0cb2a..dce8c01cdb9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-028-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-028-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-028.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-028.xht
index 8e42bd3dc52..2f9d6dbe6ba 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-028.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-028.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-029-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-029-ref.xht
index 325f73475af..eef85bc8ca5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-029-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-029-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-029.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-029.xht
index 3b30078e90c..9de299e3ce8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-029.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-029.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-030-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-030-ref.xht
index 831a2b80501..ff098963bbc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-030-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-030-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-030.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-030.xht
index c1aa346d53a..af3cdcb76c6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-030.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-030.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-031-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-031-ref.xht
index 396d8e05407..93ffd31dbf8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-031-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-031-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-031.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-031.xht
index 337ed067402..679ffc3cc99 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-031.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-031.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-032-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-032-ref.xht
index 64474522099..aa76e81d9e8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-032-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-032-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-032.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-032.xht
index 9215bc054f8..2716bbc32cc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-032.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-032.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-033-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-033-ref.xht
index 91f8f7cf617..35a4b13241c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-033-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-033-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-033.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-033.xht
index ae32b9ca847..066ba27f2d7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-033.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-033.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-034-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-034-ref.xht
index a43c782e980..b3f904eb455 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-034-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-034-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-034.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-034.xht
index 81b3bf559bd..e88e0e382ca 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-034.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-034.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-035-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-035-ref.xht
index df1b11e0ffc..4aceb7d4b9a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-035-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-035-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-035.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-035.xht
index fc7893102d6..ab5d252eb9d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-035.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-035.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-036-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-036-ref.xht
index 8c9586cd48e..1dd5a7a8f42 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-036-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-036-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-036.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-036.xht
index f1fc54a05b8..3461c3636aa 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-036.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-036.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-037-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-037-ref.xht
index 5944f6c527a..e1d5a5b3c74 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-037-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-037-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-037.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-037.xht
index e05b09a31dc..442c7d43645 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-037.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-037.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-038-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-038-ref.xht
index 5dd8f702f73..41db103c77f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-038-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-038-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-038.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-038.xht
index dfa79212304..158bf0a3090 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-038.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-038.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-039-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-039-ref.xht
index 84c1ac8b506..bacb32bf673 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-039-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-039-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-039.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-039.xht
index be3f2f9ee28..4dc741e0c96 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-039.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-039.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-040-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-040-ref.xht
index 8f3c2451006..dc6349782a8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-040-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-040-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-040.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-040.xht
index 780fec5dd5c..7a948640987 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-040.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-040.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-041-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-041-ref.xht
index 674df522247..435927a6472 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-041-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-041-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-041.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-041.xht
index 8a5a87df174..6f98c74d6c7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-041.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-041.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-042-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-042-ref.xht
index 93b98749322..26ff2d0466b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-042-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-042-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-042.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-042.xht
index 7f68c191db6..555ebb408cf 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-042.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-042.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-043-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-043-ref.xht
index cf9b07797b4..9db8f24d167 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-043-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-043-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-043.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-043.xht
index e76cfde4c96..a158103cdd1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-043.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-043.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-044-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-044-ref.xht
index 3967862eb15..c17078cdd8d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-044-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-044-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-044.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-044.xht
index 1920e8b67be..e2a1010369c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-044.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-044.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-045-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-045-ref.xht
index 7dcb0a50b1e..4a1b24a01e1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-045-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-045-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-045.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-045.xht
index 5aae530be43..211c33a761c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-045.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-045.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-046-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-046-ref.xht
index d47c2247582..14b4d3be223 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-046-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-046-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-046.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-046.xht
index 1fbef6b7b6c..5be7b8bcb75 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-046.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-046.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-047-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-047-ref.xht
index 5c630f351d4..d5759213725 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-047-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-047-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-047.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-047.xht
index e3d7e9ee6df..19b7113474e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-047.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-047.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-048-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-048-ref.xht
index 754a9ad77c1..899d35b1ad9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-048-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-048-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-048.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-048.xht
index 942537ca13c..e1a16cba6d4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-048.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-048.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-049-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-049-ref.xht
index 2b902ccea71..0e34c390221 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-049-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-049-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-049.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-049.xht
index 034b6f90df3..518b7bd1bb2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-049.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-049.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-050-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-050-ref.xht
index 4d4822c2abf..52b5d29d46d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-050-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-050-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-050.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-050.xht
index 76e8269680d..ec69bd4a3ed 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-050.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-050.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-051-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-051-ref.xht
index 9ec5aad92ab..03795b8b535 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-051-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-051-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-051.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-051.xht
index 8250d7fdba1..d3a31a4983a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-051.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-051.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-052-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-052-ref.xht
index 497257572d4..2abd956a2c7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-052-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-052-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-052.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-052.xht
index ca2ccf4f889..6a0951b2683 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-052.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-052.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-053-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-053-ref.xht
index 52e4b56876a..cfca1441ebc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-053-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-053-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-053.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-053.xht
index 22d1fac94e3..eca640d9e6e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-053.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-053.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-054-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-054-ref.xht
index 75976d40754..4c2dae06e64 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-054-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-054-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-054.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-054.xht
index 2dfb292d464..eb9007af3f2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-054.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-054.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-055-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-055-ref.xht
index 7342daabacf..d87397bac6c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-055-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-055-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-055.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-055.xht
index 3781cba5421..a5a462f0187 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-055.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-055.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-056-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-056-ref.xht
index dafe6aaa825..3f9d6576f20 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-056-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-056-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-056.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-056.xht
index 5cd7a372374..03b9c5b0d43 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-056.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-056.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-057-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-057-ref.xht
index 4a0a5f7c972..a058e542a9e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-057-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-057-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-057.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-057.xht
index 61e3490b6cf..7d49e52513d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-057.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-057.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-058-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-058-ref.xht
index 73be491d5b6..80a20c1287f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-058-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-058-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-058.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-058.xht
index e49a8e5f445..c9da04222f6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-058.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-058.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-059-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-059-ref.xht
index 183013052fa..07e1392ed14 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-059-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-059-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-059.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-059.xht
index 3a3fcd1ae36..35a9c6211cf 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-059.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-059.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-060-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-060-ref.xht
index 9d7bf6730c1..396e90db988 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-060-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-060-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-060.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-060.xht
index 1f7fed2f3bb..d784c64f6d1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-060.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-060.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-061-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-061-ref.xht
index 54270fa8b7b..0a067a406f5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-061-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-061-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-061.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-061.xht
index f5b12a95a64..92cd18a1790 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-061.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-061.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-062-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-062-ref.xht
index 615ccec5552..7e8ac3794ae 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-062-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-062-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-062.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-062.xht
index 2b57d95cee6..845322ad36e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-062.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-062.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-063-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-063-ref.xht
index 86d22e2146a..18379766f84 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-063-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-063-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-063.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-063.xht
index 54f3a9c95b8..44be9e3fe3d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-063.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-063.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-064-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-064-ref.xht
index 2b8dddb4c74..44d521f3fad 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-064-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-064-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-064.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-064.xht
index 77f32a67d2f..72d2828e926 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-064.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-064.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-065-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-065-ref.xht
index c1f893397cb..c2b8f90884d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-065-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-065-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-065.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-065.xht
index 28587af03f4..bf78eafd5ee 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-065.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-065.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-066-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-066-ref.xht
index 25201b21e76..420390c2b7a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-066-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-066-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-066.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-066.xht
index 891a08a246c..a4a47d3a730 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-066.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-066.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-067-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-067-ref.xht
index a0e0322264d..ffcf4b63b6c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-067-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-067-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-067.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-067.xht
index 8a1d50a89d0..1ce637b88ba 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-067.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-067.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-068-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-068-ref.xht
index 8a8523d044c..4f6406b65e2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-068-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-068-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-068.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-068.xht
index 011743958d0..5e3b4b94819 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-068.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-068.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-069-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-069-ref.xht
index fc0b19135ce..9612536e34c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-069-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-069-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-069.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-069.xht
index a44016a9383..9f47cbdd192 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-069.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-069.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-070-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-070-ref.xht
index 78d36c473c1..5df57f4efa8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-070-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-070-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-070.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-070.xht
index 42dd948095c..8a97e8aad07 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-070.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-070.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-071-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-071-ref.xht
index 08ea31e27f1..1429ad4055b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-071-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-071-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-071.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-071.xht
index 76c772a8278..8ec59862667 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-071.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-071.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-072-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-072-ref.xht
index 7cc060db528..9029cb627c6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-072-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-072-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-072.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-072.xht
index dca5f57103f..e5ddc3b0ce7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-072.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-072.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-073-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-073-ref.xht
index 483c1942dda..82ea14da340 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-073-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-073-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-073.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-073.xht
index 7893d9d2bbd..bc82c3f398e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-073.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-073.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-074-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-074-ref.xht
index 43abf67c081..d17f36a0e1e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-074-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-074-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-074.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-074.xht
index a1811a0688d..c1b809d3e86 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-074.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-074.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-075-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-075-ref.xht
index 4e3ff535886..07440f2e6aa 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-075-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-075-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-075.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-075.xht
index 97c072c781a..116835214fc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-075.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-075.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-076-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-076-ref.xht
index ecd9e312464..f0e86038762 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-076-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-076-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-076.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-076.xht
index 41f20f5a468..e8550206840 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-076.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-076.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-077-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-077-ref.xht
index a0f885a134b..0b04e40bb2d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-077-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-077-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-077.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-077.xht
index c44ed043755..5e1556fe6f7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-077.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-077.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-078-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-078-ref.xht
index 2f8d10b3025..cac0c4664b0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-078-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-078-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-078.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-078.xht
index dd0d099652c..cb5878197fc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-078.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-078.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-079-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-079-ref.xht
index 90759c89d30..af27c5238ae 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-079-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-079-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-079.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-079.xht
index 063dfaecdcb..d009b28cae8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-079.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-079.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-080-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-080-ref.xht
index c5517234ba9..b1a5f0fb621 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-080-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-080-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-080.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-080.xht
index 29549bf9e39..7bc8d5e74b0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-080.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-080.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-081-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-081-ref.xht
index 49a9730b2ac..7f04c16e86c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-081-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-081-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-081.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-081.xht
index 1912f022370..b956e90e191 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-081.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-081.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-082-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-082-ref.xht
index 39845902618..73719c29522 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-082-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-082-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-082.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-082.xht
index be275b74895..a9a1ed148c5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-082.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-082.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-083-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-083-ref.xht
index 99b3e755169..0be1e05ece3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-083-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-083-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-083.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-083.xht
index 9be72483436..bea429bc055 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-083.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-083.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-084-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-084-ref.xht
index f18d6be7b4a..abd0782f274 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-084-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-084-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-084.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-084.xht
index 69ae252024a..730b280f618 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-084.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-084.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-085-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-085-ref.xht
index 1839bb00426..2fe11bb5f24 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-085-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-085-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-085.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-085.xht
index 106521c3dce..2ee059d360b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-085.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-085.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-086-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-086-ref.xht
index ffdc2f8a94b..2c922b761fc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-086-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-086-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-086.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-086.xht
index 4112ce2174b..d1ab1614558 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-086.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-086.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-087-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-087-ref.xht
index 46bf453e202..ec4fe504c62 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-087-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-087-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-087.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-087.xht
index 30e9e225e3a..e9b2a7740cb 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-087.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-087.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-088-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-088-ref.xht
index fefe77d8765..b33c3b0daf0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-088-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-088-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-088.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-088.xht
index 834371f0dc6..c728b24b0f8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-088.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-088.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-089-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-089-ref.xht
index 44f2f673d4c..56ea09627c4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-089-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-089-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-089.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-089.xht
index 2076b0d6ec0..3f0af3071cb 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-089.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-089.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-090-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-090-ref.xht
index 6c60fd14992..eb7a943e9b2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-090-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-090-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-090.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-090.xht
index d95e8f6a86f..362eecc1805 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-090.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-090.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-091-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-091-ref.xht
index d6402065c8b..0cf386c8c76 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-091-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-091-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-091.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-091.xht
index 011ee2ee83c..bdf55fcfdb8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-091.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-091.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-092-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-092-ref.xht
index 8d8989e3fc6..2a9ec78f82b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-092-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-092-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-092.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-092.xht
index 0136cd3da78..7fbf1771e70 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-092.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-092.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-093-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-093-ref.xht
index 896585892c5..351da08228a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-093-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-093-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-093.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-093.xht
index 0d2aff61617..21353f1f23c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-093.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-093.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-094-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-094-ref.xht
index b117905324d..eb1991d0e94 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-094-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-094-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-094.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-094.xht
index 9b67f6c8f27..66841b53b60 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-094.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-094.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-095-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-095-ref.xht
index 249b9bdad0c..25eb98e03b8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-095-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-095-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-095.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-095.xht
index ea6d1e931b8..f1de4e51f87 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-095.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-095.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-096-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-096-ref.xht
index b28f677585a..7516250df74 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-096-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-096-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-096.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-096.xht
index 0e7f59a5758..e99f502bb11 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-096.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-096.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-097-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-097-ref.xht
index ac2768123d2..6ad6cf500e5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-097-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-097-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-097.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-097.xht
index 81fdc9e43e1..7ecff504762 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-097.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-097.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-098-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-098-ref.xht
index 35121ad0109..d2a3d5e52f1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-098-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-098-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-098.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-098.xht
index 72498ee3953..b7f2dee77e7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-098.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-098.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-099-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-099-ref.xht
index 7fd4afc58e4..9ea66d689a8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-099-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-099-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-099.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-099.xht
index e6996f8a84b..b5de98561ae 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-099.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-099.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-100-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-100-ref.xht
index 4fd43b7e79c..77cba515ce3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-100-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-100-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-100.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-100.xht
index 8a59281b73b..ca0bcb140b5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-100.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-100.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-101-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-101-ref.xht
index b50a511c876..788ebd78a43 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-101-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-101-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-101.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-101.xht
index cf76eec3ff7..dfb7d6cd5fc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-101.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-101.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-102-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-102-ref.xht
index e9aaefec18e..df52a32b028 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-102-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-102-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-102.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-102.xht
index ba1c4ef599a..20d9dac701e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-102.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-102.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-103-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-103-ref.xht
index c32ad72d073..730279077e4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-103-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-103-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-103.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-103.xht
index 80136370fb2..b4a03dcd45b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-103.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-103.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-104-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-104-ref.xht
index 6259a445f3e..ff6f146e3c3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-104-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-104-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-104.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-104.xht
index 20307826901..fbfb41b2268 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-104.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-104.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-105-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-105-ref.xht
index af9cf60c460..973210d206f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-105-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-105-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-105.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-105.xht
index 076227997ef..120ed83a848 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-105.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-105.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-106-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-106-ref.xht
index 841899ccd23..afc93d75a52 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-106-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-106-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-106.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-106.xht
index 03e82d6f895..b1478179bcd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-106.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-106.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-107-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-107-ref.xht
index 0a4a319f804..d4ddbf6b8d3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-107-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-107-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-107.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-107.xht
index 2df58bac624..b03fe20050d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-107.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-107.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-108-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-108-ref.xht
index 92e16ae2803..70d26e35e08 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-108-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-108-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-108.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-108.xht
index 5dbc170e175..98ced09a210 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-108.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-108.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-109-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-109-ref.xht
index c7aab85ee81..754a71c9bf7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-109-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-109-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-109.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-109.xht
index 19ee0b78453..9e4d9e3a95d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-109.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-109.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-110-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-110-ref.xht
index 0cb216d4d5f..4679bcf218d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-110-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-110-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-110.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-110.xht
index d1f2479779e..db4211b16b5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-110.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-110.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-111-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-111-ref.xht
index 45007cc12df..89e59638043 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-111-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-111-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-111.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-111.xht
index 81aeff9f29a..b8fdc42c747 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-111.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-111.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-112-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-112-ref.xht
index 5c8997d032d..e9108e51e98 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-112-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-112-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-112.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-112.xht
index cf909142621..32b0cac84b6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-112.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-112.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-113-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-113-ref.xht
index 08e8009b579..c98a961f3c6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-113-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-113-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-113.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-113.xht
index 795251e479e..6319741b868 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-113.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-113.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-115-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-115-ref.xht
index d2290bc4a79..18aae18a2f4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-115-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-115-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-115.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-115.xht
index 7264641d156..1e03c348725 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-115.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-115.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-116-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-116-ref.xht
index e654713227b..2009eb01eda 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-116-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-116-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-116.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-116.xht
index 13792d0b2e9..af4ed16452d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-116.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-116.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-117-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-117-ref.xht
index 5c13219c728..4b3979dd460 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-117-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-117-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-117.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-117.xht
index bfb133773a9..206fe5fd4c4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-117.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-117.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-118-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-118-ref.xht
index 8c8d7596a3a..27d4b7dfb36 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-118-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-118-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-118.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-118.xht
index b8ba5762c6c..5f74b03c12b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-118.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-118.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-119-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-119-ref.xht
index 4bd7fade4c4..3a7ab5c1af3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-119-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-119-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-119.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-119.xht
index bd2addc5b33..65923d5e993 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-119.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-119.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-120-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-120-ref.xht
index 79a6f64292b..8caa557527f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-120-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-120-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-120.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-120.xht
index 555d5f12a6a..4e597e27f2d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-120.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-120.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-121-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-121-ref.xht
index bcb33474f9a..90c81dd02c6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-121-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-121-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-121.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-121.xht
index e269ba1d2c8..cdff33d505c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-121.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-121.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-122-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-122-ref.xht
index fe6342e18b4..289151ba7dc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-122-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-122-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-122.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-122.xht
index 71a7020f0f8..6e1dd822057 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-122.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-122.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-123-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-123-ref.xht
index b6a581e393d..cfcb3dc4586 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-123-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-123-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-123.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-123.xht
index cf49cfa6a24..28a88707e65 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-123.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-123.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-124-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-124-ref.xht
index 66d512a4820..e64e7add469 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-124-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-124-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-124.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-124.xht
index 4e054476930..98c529c5c15 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-124.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-124.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-125-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-125-ref.xht
index b328c12e2ee..492806fb64f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-125-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-125-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-125.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-125.xht
index 48a8bae295c..3371e9ef49a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-125.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-125.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-126-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-126-ref.xht
index 451a042d022..0d82b5c95f1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-126-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-126-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-126.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-126.xht
index 953d5748f94..c5c2ab9f725 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-126.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-126.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-127-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-127-ref.xht
index f09bf00a9a8..d99ee5d77c6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-127-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-127-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-127.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-127.xht
index 98fa11e266b..dfb7fca8dd7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-127.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-127.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-128-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-128-ref.xht
index 40110d96067..3c18fc8d5dd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-128-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-128-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-128.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-128.xht
index d4e60200901..02c114510f3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-128.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-128.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-129-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-129-ref.xht
index 06312d1ce59..c7b47016b86 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-129-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-129-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-129.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-129.xht
index 236598ed51d..0b1ae640c7b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-129.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-129.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-130-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-130-ref.xht
index fad4f813446..837c8a31c71 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-130-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-130-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-130.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-130.xht
index 4ffb6d787a8..838d61462e9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-130.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-130.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-131-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-131-ref.xht
index 32f8a18b388..bcec253120e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-131-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-131-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-131.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-131.xht
index 2609f2312df..e039b9afc06 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-131.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-131.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-132-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-132-ref.xht
index 57779d545a1..b4d105dc814 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-132-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-132-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-132.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-132.xht
index 91490902463..71244835f3a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-132.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-132.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-133-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-133-ref.xht
index f1bd23ed9c5..68ff4671baf 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-133-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-133-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-133.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-133.xht
index cdd609ed1fe..b7bbbfe89d0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-133.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-133.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-134-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-134-ref.xht
index 7b5cc27f3bf..88d72fdbce9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-134-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-134-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-134.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-134.xht
index b629044ecc8..7c68c9cebc2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-134.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-134.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-135-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-135-ref.xht
index f55e7b843a6..66d1b40d0a8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-135-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-135-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-135.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-135.xht
index fa69c75d386..883829227b2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-135.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-135.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-136-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-136-ref.xht
index 3058f9849cb..1565fc9c06a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-136-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-136-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-136.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-136.xht
index 9cb47134781..40fb0bfb9ee 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-136.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-136.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-137-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-137-ref.xht
index aef723d2a65..5b398a33c42 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-137-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-137-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-137.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-137.xht
index 28c97dd5019..ca929ca9484 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-137.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-137.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-138-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-138-ref.xht
index 82714065136..c8b4a2498a5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-138-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-138-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-138.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-138.xht
index 1207573a1cf..a0daa2c0561 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-138.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-138.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-139-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-139-ref.xht
index 29768d271bf..b285ad73770 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-139-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-139-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-139.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-139.xht
index 0b7a16dc801..7d802750fc4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-139.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-139.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-140-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-140-ref.xht
index e7310b6cd4b..2f65eb91753 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-140-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-140-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-140.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-140.xht
index a6c4ded6214..59324ddeaa4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-140.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-140.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-141-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-141-ref.xht
index c824c312687..beeda0e6c47 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-141-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-141-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-141.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-141.xht
index 2248d916154..0a94ebe7c95 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-141.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-141.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-142-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-142-ref.xht
index 74aa1394978..f0532555c42 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-142-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-142-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-142.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-142.xht
index eb3cfc286c4..10a8c5b3243 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-142.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-142.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-143-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-143-ref.xht
index 133b4749433..a6bdd4468df 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-143-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-143-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-143.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-143.xht
index e9f405a3038..27d2d77d2a5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-143.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-143.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-144-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-144-ref.xht
index 50f2e19e74b..461baf3fbd2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-144-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-144-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-144.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-144.xht
index 91b4ec18800..cde0eed99d2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-144.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-144.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-145-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-145-ref.xht
index b7189f856e3..50f2be2fccd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-145-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-145-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-145.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-145.xht
index 70343602827..99c53c88dbe 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-145.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-145.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-146-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-146-ref.xht
index 36ddb5b88e9..474c17fd650 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-146-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-146-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-146.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-146.xht
index 6cef4c86c48..9cbcd9a072f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-146.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-146.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-147-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-147-ref.xht
index f2de64954be..84d0d59019a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-147-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-147-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-147.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-147.xht
index 15c601f8103..7c00b4067af 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-147.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-147.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-148-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-148-ref.xht
index 481a63227f3..f55f4dff092 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-148-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-148-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-148.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-148.xht
index 381beea4285..7b18617fc41 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-148.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-148.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-149-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-149-ref.xht
index 14ab1cbdc09..df53bfa2a96 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-149-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-149-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-149.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-149.xht
index d7d7876997b..ce50566f2ed 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-149.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-149.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-150-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-150-ref.xht
index 8378bd37d3d..86b5e3bbc7e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-150-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-150-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-150.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-150.xht
index 6623383ff3f..a7276a8861e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-150.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-150.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-151-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-151-ref.xht
index bf37f6af9f5..5107caa488b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-151-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-151-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-151.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-151.xht
index d6b5c73995d..f22a923dc60 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-151.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-151.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-152-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-152-ref.xht
index c2af3567966..e4bfbc6a3e3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-152-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-152-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-152.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-152.xht
index 4bf055cab61..ed9fdef8ac3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-152.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-152.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-153-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-153-ref.xht
index b347c0c8ba4..80fad377102 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-153-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-153-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-153.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-153.xht
index 39a8ec6c6cd..71a21d80766 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-153.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-153.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-154-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-154-ref.xht
index 1567a74b495..0eea3b8e794 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-154-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-154-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-154.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-154.xht
index 27771d10a69..57a1ef266db 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-154.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-154.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-155-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-155-ref.xht
index 8fe9e4f7ed2..492e0fb11d2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-155-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-155-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-155.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-155.xht
index fa9c56d86cf..092dee0a6c2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-155.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-155.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-156-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-156-ref.xht
index 9965cacb66d..03db729346c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-156-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-156-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-156.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-156.xht
index ad1f7ca7a61..7825c56fec9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-156.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-156.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-157-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-157-ref.xht
index f7db722af8f..459be01e07d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-157-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-157-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-157.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-157.xht
index 53d6291773f..9e694eddbae 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-157.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-157.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-158-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-158-ref.xht
index 5d7cf23eb8d..8d72e9e3b4a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-158-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-158-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-158.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-158.xht
index 0efd0118ce4..7c0c73f1402 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-158.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-158.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-159-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-159-ref.xht
index b5b8db53774..5b155092346 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-159-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-159-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-159.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-159.xht
index f51a381683a..9a73999eab3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-159.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-159.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-160-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-160-ref.xht
index 50a3ba8823c..d78d17be076 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-160-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-160-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-160.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-160.xht
index 062c5380771..bfc57d8097e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-160.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-160.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-161-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-161-ref.xht
index 0d99692c770..d464cbdd766 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-161-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-161-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-161.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-161.xht
index 65f72f7152f..c04bdf33a20 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-161.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-161.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-162-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-162-ref.xht
index 0ef7f6f6377..64c7a7690d5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-162-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-162-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-162.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-162.xht
index 19289f8f04c..d8c4a89c212 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-162.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-162.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-163-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-163-ref.xht
index 51a04f66867..91e9d5e792e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-163-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-163-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-163.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-163.xht
index 22f1d54b1af..31a44accca0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-163.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-163.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-164-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-164-ref.xht
index ed969123157..579567b0ea7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-164-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-164-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-164.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-164.xht
index f8a7a7498bc..658f6c003c6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-164.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-164.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-165-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-165-ref.xht
index 4c44d3df03a..004cfeaed3f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-165-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-165-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-165.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-165.xht
index 0a9228ce8c6..55a0d64cb2c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-165.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-165.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-166-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-166-ref.xht
index 9b215ec915f..0384e9a92f3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-166-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-166-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-166.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-166.xht
index 8c51e2e57e8..7569554f8ba 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-166.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-166.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-167-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-167-ref.xht
index 9584f6de9ab..6cb5e1c3789 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-167-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-167-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-167.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-167.xht
index ed66067e217..df7abf286a3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-167.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-167.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-168-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-168-ref.xht
index e766c0e2128..3d95e1533f0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-168-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-168-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-168.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-168.xht
index aec03760c32..18185e49ad2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-168.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-168.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-169-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-169-ref.xht
index 9db81f75e66..c8b0aa50ba5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-169-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-169-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-169.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-169.xht
index e395cb0aa82..46e353b3787 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-169.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-169.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-170-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-170-ref.xht
index c733aaf7f6b..743cc4b2385 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-170-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-170-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-170.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-170.xht
index 100966773df..36df8f3a208 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-170.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-170.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-171-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-171-ref.xht
index deab09af892..bc727c799e3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-171-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-171-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-171.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-171.xht
index ffd1ced67e4..af9c30ffeb0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-171.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-171.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-172-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-172-ref.xht
index ca15ad0ca25..32c8c572d30 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-172-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-172-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-172.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-172.xht
index 0125d1d3c79..c247d7bb612 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-172.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-172.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-173-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-173-ref.xht
index f25f31b863a..534a0b1fc2c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-173-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-173-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-173.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-173.xht
index 30aa1465eca..302f5483d19 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-173.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-173.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-174-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-174-ref.xht
index 60bdddf136c..399f71e2c05 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-174-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-174-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-174.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-174.xht
index 89b2eab3818..bdab4c3525f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-174.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-174.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-175-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-175-ref.xht
index f21b7cfd23e..afee42c6212 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-175-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-175-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-175.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-175.xht
index c5b5399750c..c57f7b29120 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-175.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-175.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-176-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-176-ref.xht
index 8d513a33750..cabce1b2f57 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-176-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-176-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-176.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-176.xht
index cc54471df1b..2eaeac64df4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-176.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-176.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-177-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-177-ref.xht
index d2ddcd39460..d4118745352 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-177-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-177-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-177.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-177.xht
index 2f6afb49718..e9ca7346680 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-177.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-177.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-178-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-178-ref.xht
index 69895bdfff4..ca7118d682e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-178-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-178-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-178.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-178.xht
index 4821acb39fb..c55d01d6cb6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-178.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-178.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-179-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-179-ref.xht
index be7445d785b..cb13983ff2b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-179-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-179-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-179.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-179.xht
index 139f93d95f3..669825a59c1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-179.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-179.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-180-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-180-ref.xht
index 122c28a8ce1..d5923ee7c78 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-180-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-180-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-180.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-180.xht
index fd0eb2202a0..355b2a6c93f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-180.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-180.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-181-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-181-ref.xht
index 978e6bd7641..2c9e7afa71b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-181-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-181-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-181.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-181.xht
index 745525e2a4a..cf56611683b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-181.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-181.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-182-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-182-ref.xht
index 389d49ce3cc..e2c16a33e3a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-182-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-182-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-182.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-182.xht
index 0606860fbb9..2bff193c6c0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-182.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-182.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-183-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-183-ref.xht
index 5b0239b18c6..1417888516d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-183-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-183-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-183.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-183.xht
index b315135c258..55277314175 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-183.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-183.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-184-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-184-ref.xht
index 08ab9d78da4..4bc74bda513 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-184-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-184-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-184.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-184.xht
index 535049573a4..ba4755c1ba8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-184.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-184.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-185-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-185-ref.xht
index 2f38885b7d6..981d79d2c94 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-185-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-185-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-185.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-185.xht
index b91562f3ec2..26dff147e18 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-185.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-185.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-186-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-186-ref.xht
index 3ab14b4dd47..30ff6577446 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-186-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-186-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-186.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-186.xht
index 0e1211eeace..c15733a35e4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-186.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-186.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-187-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-187-ref.xht
index a3957ed21fc..392e751c743 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-187-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-187-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-187.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-187.xht
index 4f330f15c0c..4352eee5e8b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-187.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-187.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-188-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-188-ref.xht
index 3c6fd512748..e9b4d6d876c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-188-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-188-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-188.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-188.xht
index 0a8f74974fa..6edb4f79275 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-188.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-188.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-189-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-189-ref.xht
index 3fe6979a76f..71843fa789b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-189-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-189-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-189.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-189.xht
index 53e4c786252..0d4a5669a0f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-189.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-189.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-190-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-190-ref.xht
index 9be0478a000..fc0988270c8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-190-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-190-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-190.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-190.xht
index 3eef2b6948e..77ad96cf2b9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-190.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-190.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-191-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-191-ref.xht
index 5bdfb7cebcd..8ebd426b0b0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-191-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-191-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-191.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-191.xht
index 3b28f300a36..d40185b14d5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-191.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-191.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-192-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-192-ref.xht
index 11c98f993c2..9f35e693ae8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-192-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-192-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-192.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-192.xht
index 374da016cf3..90d284ad338 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-192.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-192.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-193-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-193-ref.xht
index 8b62224000c..b3f735fe63b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-193-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-193-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-193.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-193.xht
index 832224de162..7bfd148ba1a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-193.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-193.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-194-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-194-ref.xht
index 745c3cefc2b..eb8b2ffe863 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-194-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-194-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-194.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-194.xht
index 52f78e9676b..eab152af2ce 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-194.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-194.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-195-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-195-ref.xht
index e9db800cd07..4c98dafb554 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-195-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-195-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-195.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-195.xht
index c5a91d6ada6..c75ef1e5568 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-195.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-195.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-196-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-196-ref.xht
index c31156355b8..8ab2fe038fd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-196-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-196-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-196.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-196.xht
index 70e9ee195a8..60a0a750ffe 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-196.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-196.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-197-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-197-ref.xht
index 32ba3a00578..3e0b68e2980 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-197-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-197-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-197.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-197.xht
index 2fcc4ca71f6..943087a09fe 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-197.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-197.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-198-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-198-ref.xht
index 01e3c588827..38b1f8ade24 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-198-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-198-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-198.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-198.xht
index 950893b29c6..48cfe1d5379 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-198.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-198.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-199-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-199-ref.xht
index 0570f7c30ba..8cf6a1ab8b6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-199-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-199-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-199.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-199.xht
index 751f7d49b6f..d8cdbf37728 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-199.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-199.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-200-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-200-ref.xht
index 6cef10931b6..9720a16119c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-200-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-200-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-200.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-200.xht
index 048b76f3064..04bbd554f75 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-200.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-200.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-201-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-201-ref.xht
index 7bbb23750d2..d9c59172324 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-201-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-201-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-201.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-201.xht
index 0b1a2c3674d..82fcf6be481 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-201.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-201.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-202-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-202-ref.xht
index 000d649e80f..995d6131629 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-202-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-202-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-202.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-202.xht
index a8c99dd79c0..1350b37948d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-202.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-202.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-203-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-203-ref.xht
index f0cd566ed64..851b101a2d4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-203-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-203-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-203.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-203.xht
index 3b0605c587b..27c51089066 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-203.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-203.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-204-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-204-ref.xht
index ab2f3a406e0..d5c73189564 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-204-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-204-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-204.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-204.xht
index 7da6599c88c..e08658033bc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-204.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-204.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-205-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-205-ref.xht
index bb1377d2261..8e511ec2aef 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-205-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-205-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-205.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-205.xht
index 97119adb3e8..d409ab667a8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-205.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-205.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-206-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-206-ref.xht
index 9071fcbcb8e..e387f3158f8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-206-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-206-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-206.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-206.xht
index 22e2ef65c8e..1467bcc8fc2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-206.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-206.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-207-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-207-ref.xht
index db540bc8df3..8a4863fca14 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-207-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-207-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-207.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-207.xht
index e7c1330fc15..d6dd6ed1d41 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-207.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-207.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-208-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-208-ref.xht
index 4867bf3391c..e366b23519b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-208-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-208-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-208.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-208.xht
index 928bbf057e7..e3c521b1ef5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-208.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-208.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-211-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-211-ref.xht
index 00be4493da3..6a8855b5867 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-211-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-211-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-211.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-211.xht
index 0b83dd88d66..78f5cb400e2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-211.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-211.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-212-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-212-ref.xht
index 08ff0e7913b..d692a1568ff 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-212-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-212-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-212.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-212.xht
index 041e2263af4..2e129f6c5b9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-212.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-212.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-213-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-213-ref.xht
index 793ad881297..4146f2a4ccb 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-213-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-213-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-213.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-213.xht
index 216f61e2bf0..298630b4eb7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-213.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-213.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-214-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-214-ref.xht
index 78b549f7b89..59d5397e17f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-214-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-214-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-214.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-214.xht
index 63f62eda449..c831ab3141a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-214.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-214.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-215-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-215-ref.xht
index cf3e3f5c977..21a22afd83f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-215-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-215-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-215.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-215.xht
index c4924720d8b..1a6e28a8d06 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-215.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-215.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-216-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-216-ref.xht
index 507166776c8..7bb3bf8dcb6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-216-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-216-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-216.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-216.xht
index 521c2713961..4d4cb14c109 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-216.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-216.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-217-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-217-ref.xht
index 3baeda35256..1be6083c50b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-217-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-217-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-217.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-217.xht
index 79ad368de55..21d597b3eed 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-217.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-217.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-218-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-218-ref.xht
index bc4481f6fbb..afeb023a992 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-218-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-218-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-218.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-218.xht
index df65d5cc66e..86cab67d99c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-218.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-218.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-219-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-219-ref.xht
index 2c68c6b9022..eb7dad3185a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-219-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-219-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-219.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-219.xht
index e94cdbe0424..bf9771312cb 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-219.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-219.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-220-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-220-ref.xht
index 5786499d069..0f1121d8cf6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-220-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-220-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-220.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-220.xht
index 3103187e6ae..1b2dcdf5c01 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-220.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-220.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-221-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-221-ref.xht
index b458860d5b9..188bc5d2772 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-221-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-221-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-221.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-221.xht
index 21fe043543b..0cd4a635150 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-221.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-221.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-222-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-222-ref.xht
index d1916f69364..079ba6b60c7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-222-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-222-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-222.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-222.xht
index de3d04b617a..341899670b2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-222.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-222.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-223-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-223-ref.xht
index 9d2a3685ef7..92a56c613b1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-223-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-223-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-223.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-223.xht
index af1376a2371..b64bb9d19cb 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-223.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-223.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-224-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-224-ref.xht
index dddf3da6c30..476796899c3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-224-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-224-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-224.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-224.xht
index df0c0db2080..35366c15703 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-224.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-224.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-225-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-225-ref.xht
index 3add954db46..c35178cdc86 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-225-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-225-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-225.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-225.xht
index d82a2fd9301..1d04f814f39 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-225.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-225.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-226-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-226-ref.xht
index 57155d6bf15..e03fdd4774b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-226-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-226-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-226.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-226.xht
index 55db877a17f..3c602087b0e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-226.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-226.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-227-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-227-ref.xht
index 02ea0cb831e..de876a43aa0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-227-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-227-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-227.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-227.xht
index fe50cafd997..f0a9d65d06c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-227.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-227.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-228-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-228-ref.xht
index bbe7b9b6c01..40a0f1c4d42 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-228-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-228-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-228.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-228.xht
index 7c36cd45c84..fda80ded2c5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-228.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-228.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-229-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-229-ref.xht
index 98e9a5aec7a..7c291081261 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-229-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-229-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-229.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-229.xht
index 54c32192604..5aba4e6b2dd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-229.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-229.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-230-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-230-ref.xht
index 05670a886a2..ee51c25049a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-230-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-230-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-230.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-230.xht
index 22bc579e1a5..e3dcc74a0a1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-230.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-230.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-231-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-231-ref.xht
index 34c3ece01d1..751c3f4844f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-231-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-231-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-231.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-231.xht
index 906be282a79..c40ce1c64b3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-231.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-231.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-232-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-232-ref.xht
index 6fd089d4e27..209a715a58a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-232-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-232-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-232.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-232.xht
index 1d3dc6c533d..c275d4e0947 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-232.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-232.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-233-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-233-ref.xht
index b8107bb0381..b214e66e339 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-233-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-233-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-233.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-233.xht
index ed69e0c224f..b3b44372fbf 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-233.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-233.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-234-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-234-ref.xht
index a839c258cc7..be2b5270524 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-234-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-234-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-234.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-234.xht
index db54d2e93d4..609cbc43d01 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-234.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-234.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-235-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-235-ref.xht
index 3924f63f62b..e4cbd83f745 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-235-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-235-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-235.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-235.xht
index 0d18a5805aa..ea56894dc9e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-235.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-235.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-236-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-236-ref.xht
index d2c221e1d06..0e01b37de62 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-236-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-236-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-236.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-236.xht
index 95cc462691a..4cac8faef8e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-236.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-236.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-237-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-237-ref.xht
index 41d5a50746e..0509d40c29c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-237-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-237-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-237.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-237.xht
index 131cd1ddfcb..8e3b26aef57 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-237.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-237.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-238-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-238-ref.xht
index b34e23dbebe..1e42b97d8ee 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-238-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-238-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-238.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-238.xht
index 7265af47145..683ca66ff75 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-238.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-238.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-239-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-239-ref.xht
index b8031fc4859..d5a7e06f7b2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-239-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-239-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-239.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-239.xht
index 562d8c92aa3..89c3d3f535b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-239.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-239.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-240-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-240-ref.xht
index 0722f45f1b1..a9cdafa116b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-240-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-240-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-240.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-240.xht
index 7f7cabe4aa8..95287ef6dd4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-240.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-240.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-241-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-241-ref.xht
index b3d72b2c221..ed4d197bd6a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-241-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-241-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-241.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-241.xht
index ce68e37fb99..933c6aa81c4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-241.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-241.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-242-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-242-ref.xht
index 8878dc5a815..c791cad9cef 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-242-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-242-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-242.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-242.xht
index a9c2fddc794..34b8113c954 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-242.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-242.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-243-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-243-ref.xht
index 00b2b442fa0..c39d8f5b327 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-243-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-243-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-243.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-243.xht
index cd909ccca3d..213ee367907 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-243.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-243.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-244-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-244-ref.xht
index 715346b7f95..9e0fdf19d4e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-244-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-244-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-244.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-244.xht
index eabf41da786..7a1487c868a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-244.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-244.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-245-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-245-ref.xht
index 767e313a119..869e86eae3d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-245-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-245-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-245.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-245.xht
index b8395d3fb9d..fe1fee6cbbb 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-245.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-245.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-246-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-246-ref.xht
index d6ca229db71..2b5de2ea363 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-246-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-246-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-246.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-246.xht
index 873ff4e46c8..06be6a6bf0e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-246.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-246.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-247-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-247-ref.xht
index 083f64a44f0..9398c6366b6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-247-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-247-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-247.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-247.xht
index 1e6a2554641..1fe217961db 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-247.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-247.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-248-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-248-ref.xht
index f785824559f..df47b19ee09 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-248-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-248-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-248.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-248.xht
index e6fce726c42..e3e68db3fe0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-248.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-248.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-249-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-249-ref.xht
index cefc2ac02f2..1e6f37b02ba 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-249-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-249-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-249.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-249.xht
index 12e7330a2ab..4401ef4575e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-249.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-249.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-250-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-250-ref.xht
index 659881e04ed..33b6b5037fa 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-250-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-250-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-250.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-250.xht
index a544fbff401..b1746b70f68 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-250.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-250.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-251-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-251-ref.xht
index 02ddd9de4a5..9dd06eaf1b3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-251-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-251-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-251.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-251.xht
index d14a4862eb3..f749557e0d1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-251.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-251.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-252-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-252-ref.xht
index 6ee0b6a3a5f..24efc62eb23 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-252-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-252-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-252.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-252.xht
index a2173ead8a2..c7bb1e1e94f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-252.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-252.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-253-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-253-ref.xht
index 2f6aa4f22cc..3dddd99c6e8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-253-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-253-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-253.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-253.xht
index 424e9a8d189..dc4eb5f6631 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-253.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-253.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-254-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-254-ref.xht
index 911c625ba12..4b4a1d04b03 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-254-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-254-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-254.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-254.xht
index 5c37ea2dd06..55407cd45e9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-254.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-254.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-255-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-255-ref.xht
index bb5bedb8345..60b89a99caf 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-255-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-255-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-255.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-255.xht
index 7a2ce27392a..f7fcf84b245 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-255.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-255.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-256-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-256-ref.xht
index 142b8a9a5ed..e6462c14f54 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-256-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-256-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-256.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-256.xht
index 0bbf2075802..4f82f030361 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-256.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-256.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-257-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-257-ref.xht
index 35641cbcb05..783e216bd1e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-257-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-257-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-257.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-257.xht
index 4d513f0d61b..ad02334ea90 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-257.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-257.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-258-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-258-ref.xht
index 2e9066b32f5..6d6759d7970 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-258-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-258-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-258.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-258.xht
index b909571e30d..639b62ab0e4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-258.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-258.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-259-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-259-ref.xht
index a311dc3c002..bbb521e851c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-259-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-259-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-259.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-259.xht
index 2edcb760283..28a28df7084 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-259.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-259.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-260-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-260-ref.xht
index 0138342e6c9..e67ca6ed63e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-260-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-260-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-260.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-260.xht
index 751003a55c8..fc5c58fc91a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-260.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-260.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-262-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-262-ref.xht
index acf43018bf7..f2bf7e89bdc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-262-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-262-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-262.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-262.xht
index dd341c10602..78ede1508c3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-262.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-262.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-263-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-263-ref.xht
index 8d40927874f..519a912c989 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-263-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-263-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-263.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-263.xht
index 51cd6e0b0b7..c811c5d6dfa 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-263.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-263.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-264-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-264-ref.xht
index 0d576c888a1..a41582ff243 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-264-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-264-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-264.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-264.xht
index 9c7b45ee37b..90a765f198d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-264.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-264.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-265-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-265-ref.xht
index 9005ad182cd..2257fde8d8e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-265-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-265-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-265.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-265.xht
index f8d0aae02ce..5a45abd07c6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-265.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-265.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-266-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-266-ref.xht
index 037a2e3504d..e07cf60a65c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-266-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-266-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-266.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-266.xht
index 98e419a268f..5388ba00919 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-266.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-266.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-267-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-267-ref.xht
index 39c46b01b39..0b0fa6a10b5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-267-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-267-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-267.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-267.xht
index e461c8b8ded..955b3434b24 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-267.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-267.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-268-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-268-ref.xht
index a353be2e8ac..f0c3389746b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-268-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-268-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-268.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-268.xht
index 1a10b7e389a..9bb43329710 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-268.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-268.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-269-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-269-ref.xht
index a5bf9dd0469..b1eb0990209 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-269-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-269-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-269.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-269.xht
index 9f2f4510a74..def2baf4e1c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-269.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-269.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-270-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-270-ref.xht
index 88f0ae167ad..32df94501e9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-270-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-270-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-270.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-270.xht
index e3ed66a6df5..08cd24105ed 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-270.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-270.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-271-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-271-ref.xht
index a8850e90e6a..7b6c44121b4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-271-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-271-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-271.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-271.xht
index 9823d458d27..4583dd1ee1d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-271.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-271.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-272-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-272-ref.xht
index bedba1bedce..41afd0b8c23 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-272-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-272-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-272.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-272.xht
index f463f0b75d3..c096cd8abf9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-272.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-272.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-273-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-273-ref.xht
index 0392165c039..73f4497da2b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-273-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-273-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-273.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-273.xht
index 38ac24c039d..7be36bc18f7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-273.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-273.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-274-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-274-ref.xht
index 4fb3d987874..7bc6bf68e7a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-274-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-274-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-274.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-274.xht
index 94062e37ba5..8a69edf8128 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-274.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-274.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-275-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-275-ref.xht
index 8551a0c3cfe..af1d6f27e27 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-275-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-275-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-275.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-275.xht
index 0285fe128a4..223dbea4325 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-275.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-275.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-276-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-276-ref.xht
index c777ca45113..76db03dd619 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-276-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-276-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-276.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-276.xht
index 661e063823d..e04f2a0bd81 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-276.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-276.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-277-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-277-ref.xht
index cfb5298b6cf..f9f1971405f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-277-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-277-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-277.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-277.xht
index dc89b8c9e93..caecce6c8e3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-277.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-277.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-278-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-278-ref.xht
index bc6af2c0947..388f06966f3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-278-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-278-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-278.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-278.xht
index 253a1d9ebcb..67f8e4e2328 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-278.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-278.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-279-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-279-ref.xht
index 931c0f0f270..c1489e87a68 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-279-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-279-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-279.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-279.xht
index 0129dd0c052..260a22aee73 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-279.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-279.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-280-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-280-ref.xht
index 3c7fc99c114..15a83b9cca0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-280-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-280-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-280.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-280.xht
index d25aceeea5e..8775e27bbb8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-280.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-280.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-281-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-281-ref.xht
index 48f8f49d025..96da0462e6f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-281-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-281-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-281.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-281.xht
index 4f868e6d22f..1f64a12b742 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-281.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-281.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-282-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-282-ref.xht
index c59245e3182..4deebc763bd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-282-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-282-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-282.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-282.xht
index c6194a95032..2b9343e5b7f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-282.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-282.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-283-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-283-ref.xht
index 8c96e5316a8..5cde936b224 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-283-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-283-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-283.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-283.xht
index f9ab533b4d1..de258fb0b0e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-283.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-283.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-284-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-284-ref.xht
index 46eaa03cf15..9387a6a1a5b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-284-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-284-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-284.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-284.xht
index 694c973c6e2..f3d45fc01fd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-284.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-284.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-285-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-285-ref.xht
index 1b2a853ed20..14bde6a7175 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-285-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-285-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-285.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-285.xht
index b2d35ae4dc9..9a6bcae5a61 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-285.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-285.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-286-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-286-ref.xht
index 130164ec075..5b8d53810ab 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-286-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-286-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-286.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-286.xht
index 54e6571623c..c9e328cf353 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-286.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-286.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-287-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-287-ref.xht
index 34b186a5e87..eb19646aa4c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-287-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-287-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-287.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-287.xht
index 5a4e866f04d..c878e7aea9d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-287.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-287.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-288-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-288-ref.xht
index 516f34e5e60..138de8f7413 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-288-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-288-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-288.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-288.xht
index 1fb8db65959..3842fa687fd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-288.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-288.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-289-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-289-ref.xht
index 5d6ce7e0b77..8381e64c953 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-289-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-289-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-289.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-289.xht
index f68397d0dda..fdb694dd90f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-289.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-289.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-290-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-290-ref.xht
index a8e5074d154..738f2fa2ea4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-290-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-290-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-290.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-290.xht
index 4d65f2c4d84..44bb23ccb96 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-290.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-290.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-291-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-291-ref.xht
index 8da75cc4a19..acaf1dfc887 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-291-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-291-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-291.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-291.xht
index a873ac567a2..98aea5284f7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-291.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-291.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-292-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-292-ref.xht
index b38dfd70f27..adc9507a42c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-292-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-292-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-292.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-292.xht
index 36ed3ffdb90..dedc11e1150 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-292.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-292.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-293-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-293-ref.xht
index 539a2e7d18d..19ea4982910 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-293-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-293-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-293.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-293.xht
index 9c64e8f7b74..689c2f9b861 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-293.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-293.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-294-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-294-ref.xht
index b6cae5a65d1..c2aef093ca6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-294-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-294-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-294.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-294.xht
index 0553863b7eb..a4b6cd39121 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-294.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-294.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-295-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-295-ref.xht
index 24232fa0b4f..e4f48109a96 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-295-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-295-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-295.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-295.xht
index 1b88358e53d..3c66fa9dcd3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-295.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-295.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-296-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-296-ref.xht
index 7e8884da87b..d60232b747d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-296-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-296-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-296.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-296.xht
index 890b4a7d411..9b294a5aafd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-296.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-296.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-297-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-297-ref.xht
index 001c2e2e94e..3efd41e9178 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-297-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-297-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-297.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-297.xht
index 3df5992a39a..a391ff05d5c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-297.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-297.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-298-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-298-ref.xht
index c74223d93a5..1afb79d642b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-298-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-298-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-298.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-298.xht
index e7e9276f8ef..908450e00b4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-298.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-298.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-299-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-299-ref.xht
index bec42fe97da..bac18089fa1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-299-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-299-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-299.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-299.xht
index f3cff5c77e3..6f99f45a489 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-299.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-299.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-300-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-300-ref.xht
index f22943719f7..863f9c03e89 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-300-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-300-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-300.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-300.xht
index 03c5d460607..ba427b367bd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-300.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-300.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-301-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-301-ref.xht
index bdd2a457858..18ce9910cd1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-301-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-301-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-301.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-301.xht
index 033de252611..048672f67be 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-301.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-301.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-302-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-302-ref.xht
index 56fe64e2dbf..a5a8c2700d0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-302-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-302-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-302.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-302.xht
index 41d270e50c0..78e12e79a27 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-302.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-302.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-303-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-303-ref.xht
index 648a73e66ff..db429fb8928 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-303-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-303-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-303.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-303.xht
index cb4683b3e28..1894445612d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-303.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-303.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-304-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-304-ref.xht
index 4c9006ab1a6..885a7c12f00 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-304-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-304-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-304.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-304.xht
index 8d43068b8ab..9824b4f1e62 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-304.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-304.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-305-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-305-ref.xht
index 9fc81dc059d..8f4c4d674e6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-305-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-305-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-305.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-305.xht
index 4affea71bd1..a7b862292fc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-305.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-305.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-306-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-306-ref.xht
index 32d0cac0cd7..3ec18a943ee 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-306-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-306-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-306.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-306.xht
index 72cca1620fd..bbfefde3c10 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-306.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-306.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-307-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-307-ref.xht
index bfebbaa4e05..7e86f831cb5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-307-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-307-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-307.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-307.xht
index cbe2cbaa2cb..a2234447a79 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-307.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-307.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-308-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-308-ref.xht
index 4d3c8090a02..8ba18b7c4ec 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-308-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-308-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-308.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-308.xht
index 81d0eeaaa0f..b612d608ab8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-308.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-308.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-309-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-309-ref.xht
index 1abd4cc5917..d7658e789c9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-309-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-309-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-309.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-309.xht
index 2bc5d2aa355..7a2fa13dc3f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-309.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-309.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-310-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-310-ref.xht
index c6ccf7e3004..63a6ad79718 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-310-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-310-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-310.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-310.xht
index 40caba13062..c65f9fb85e7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-310.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-310.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-311-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-311-ref.xht
index 1c67dd756d9..418365ac366 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-311-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-311-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-311.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-311.xht
index 51a4b2ad1fc..7225bb94aa3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-311.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-311.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-312-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-312-ref.xht
index 4d0a95819b2..fa1f3117798 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-312-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-312-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-312.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-312.xht
index 9a6ccd6d44b..6d5e835f1b4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-312.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-312.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-313-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-313-ref.xht
index 67b3114dbdb..802755bebc3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-313-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-313-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-313.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-313.xht
index 9d3d2767912..391254fcdc5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-313.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-313.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-314-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-314-ref.xht
index 84883e89cb4..a80380a2432 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-314-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-314-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-314.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-314.xht
index 75ce502ddd2..dee95ffe6c9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-314.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-314.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-315-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-315-ref.xht
index a670478b5dd..3d880d86395 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-315-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-315-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-315.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-315.xht
index fb739e8334e..74cd9e10b86 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-315.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-315.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-316-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-316-ref.xht
index b66b01795b3..fb5282bd15f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-316-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-316-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-316.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-316.xht
index 42c223a8f2f..ae4434d26b7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-316.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-316.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-317-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-317-ref.xht
index 8654e697b5e..a2c7f9a021d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-317-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-317-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-317.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-317.xht
index c09be95cf47..a3bbd19a3bc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-317.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-317.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-318-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-318-ref.xht
index ba879ac7d47..3a89dbe96ac 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-318-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-318-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-318.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-318.xht
index b8d14e13e07..bd2eac307c6 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-318.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-318.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-319-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-319-ref.xht
index 4f6794dd241..45e709ffea1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-319-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-319-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-319.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-319.xht
index 947e4922c14..af5da5da331 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-319.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-319.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-320-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-320-ref.xht
index e940ddb3868..717f231d685 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-320-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-320-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-320.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-320.xht
index a7a7e79f4e9..737a474f8f1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-320.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-320.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-321-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-321-ref.xht
index 21f306ffdca..fe0ebf3eca9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-321-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-321-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-321.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-321.xht
index 89284efed5d..ec8b00d2f2c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-321.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-321.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-322-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-322-ref.xht
index 7d6a17a8f11..7e55e2e0271 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-322-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-322-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-322.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-322.xht
index ed197b7d7cf..28b4d8dd45f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-322.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-322.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-323-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-323-ref.xht
index e787afb2d54..9de4e412ab3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-323-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-323-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-323.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-323.xht
index e1ec8a26486..a0a6dc2bcf5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-323.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-323.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-324-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-324-ref.xht
index c49e415f17e..b8a823de41e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-324-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-324-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-324.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-324.xht
index 64a7c606303..e3dcb0261a5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-324.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-324.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-325-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-325-ref.xht
index d109b17f62d..c2eb6fa67a5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-325-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-325-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-325.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-325.xht
index 0ad807318f3..11d43f8f6d2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-325.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-325.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-326-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-326-ref.xht
index 57c2fb1f353..2b37d74b1c3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-326-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-326-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-326.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-326.xht
index 098054073a2..d161133f95e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-326.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-326.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-327-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-327-ref.xht
index 958abf4833b..cf6267ff96a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-327-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-327-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-327.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-327.xht
index fb4520e946c..503f569d578 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-327.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-327.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-328-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-328-ref.xht
index a9d0bdbde7b..43114a8c1d4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-328-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-328-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-328.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-328.xht
index 3232f76a0d6..56b53e6c0f1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-328.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-328.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-329-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-329-ref.xht
index c39f5b7d45c..ab344096d33 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-329-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-329-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-329.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-329.xht
index 0ce7eb73402..ff8e823a984 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-329.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-329.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-330-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-330-ref.xht
index c365ec95d4b..a1fc53fabd3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-330-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-330-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-330.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-330.xht
index deabac0e3da..475530a0d40 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-330.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-330.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-331-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-331-ref.xht
index 0ff31340967..762e93665cd 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-331-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-331-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-331.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-331.xht
index d38b920de4a..3a66eac1257 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-331.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-331.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-332-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-332-ref.xht
index 6937fbca71b..0209c4e8116 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-332-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-332-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-332.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-332.xht
index c5b8f1e5aa5..3c4de60a3b9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-332.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-332.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-333-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-333-ref.xht
index 4fe9f261fd1..4c7281cf032 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-333-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-333-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-333.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-333.xht
index df27f1c7bce..e8e99aed58b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-333.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-333.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-334-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-334-ref.xht
index 7aa06703ad2..ca7d14649b0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-334-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-334-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-334.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-334.xht
index aac48b605bc..36265c9cf5a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-334.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-334.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-335-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-335-ref.xht
index 2487a4b7321..e1de21e7ce5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-335-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-335-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-335.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-335.xht
index 9ab002e3808..818a96147d2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-335.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-335.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-336-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-336-ref.xht
index 5ea78d9eff5..c7f64fe35c7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-336-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-336-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-336.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-336.xht
index 14a1dd010c3..4df86ba6497 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-336.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-336.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-337-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-337-ref.xht
index c7f3ba2feca..df98c3176fe 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-337-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-337-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-337.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-337.xht
index 629af6ec734..b9452e8601e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-337.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-337.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-338-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-338-ref.xht
index feda2767383..27732b67aaf 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-338-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-338-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-338.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-338.xht
index a19ef814eec..a0362b1b7e8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-338.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-338.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-339-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-339-ref.xht
index a5cd00371b2..804afda93d2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-339-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-339-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-339.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-339.xht
index 5bf143055ac..aafc464acb5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-339.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-339.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-340-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-340-ref.xht
index a06c5c02d99..6d131f02c5f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-340-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-340-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-340.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-340.xht
index 872b10625bc..d26013aadcb 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-340.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-340.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-341-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-341-ref.xht
index c380a7e4d3d..cb8c9a4a639 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-341-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-341-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-341.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-341.xht
index d3c16276a5e..d76ddb65d6d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-341.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-341.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-342-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-342-ref.xht
index c20397dd521..db5ca8c8828 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-342-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-342-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-342.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-342.xht
index 8aa2c9f5cac..3fe9517fef3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-342.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-342.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-343-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-343-ref.xht
index fc90353a414..fc4e75d8a26 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-343-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-343-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-343.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-343.xht
index 35219949613..2f9f2c64172 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-343.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-343.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-344-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-344-ref.xht
index b5bda44dc8a..9e6e26ad7c7 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-344-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-344-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-344.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-344.xht
index 13da537cb66..b4f2718c7ac 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-344.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-344.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-345-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-345-ref.xht
index f85d2db9907..64a7995ad20 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-345-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-345-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-345.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-345.xht
index aedaebbab73..952f7d4b689 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-345.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-345.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-346-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-346-ref.xht
index c2536bb3f35..bfc7fa2472c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-346-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-346-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-346.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-346.xht
index 7ca5f54d5fb..d9387c456da 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-346.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-346.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-347-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-347-ref.xht
index 2b3952bbadd..357b449bde0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-347-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-347-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-347.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-347.xht
index b0c77b79311..f5e0297638b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-347.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-347.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-348-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-348-ref.xht
index 6e130de6450..f8af27e89de 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-348-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-348-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-348.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-348.xht
index 20e2144a9b2..8be0e328327 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-348.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-348.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-349-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-349-ref.xht
index 14311d27ece..e96ec516413 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-349-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-349-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-349.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-349.xht
index 09e725e0f84..346cd9a4efc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-349.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-349.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-350-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-350-ref.xht
index 6ea041d5472..93cd4300d62 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-350-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-350-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-350.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-350.xht
index 4d87155892d..2f5f5c35c55 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-350.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-350.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-351-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-351-ref.xht
index 321a5f21a42..937b34258e2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-351-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-351-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-351.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-351.xht
index 64e4a5662eb..617c16b9369 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-351.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-351.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-352-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-352-ref.xht
index 5075ea0bc0f..67a89369229 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-352-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-352-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-352.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-352.xht
index 7dcb008d63c..ebb0c5bbf1e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-352.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-352.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-353-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-353-ref.xht
index 63ecebf8ca4..2aea289c07d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-353-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-353-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-353.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-353.xht
index 259b1cb4744..c1fc369ca91 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-353.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-353.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-354-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-354-ref.xht
index db8f712c6fe..18347df0fed 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-354-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-354-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-354.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-354.xht
index 13d6240672a..73f3f31f931 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-354.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-354.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-355-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-355-ref.xht
index d7a9ac51c09..f143c2ffe60 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-355-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-355-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-355.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-355.xht
index d96fbfe7447..d5834a0c36f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-355.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-355.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-356-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-356-ref.xht
index 635ce1f3ce1..6d04e2f27f0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-356-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-356-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-356.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-356.xht
index cef9453f154..e594296c75e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-356.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-356.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-357-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-357-ref.xht
index 8ebf49a1ea3..8dc6a3d9e25 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-357-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-357-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-357.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-357.xht
index 0746991450a..21beaaf608f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-357.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-357.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-359-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-359-ref.xht
index d5aa1001768..59f2aec6078 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-359-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-359-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-359.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-359.xht
index c859258cebe..75ee1156fe2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-359.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-359.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-360-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-360-ref.xht
index 44b9475bf63..99f273616e9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-360-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-360-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-360.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-360.xht
index 0fda7464e89..1e37465d9c3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-360.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-360.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-361-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-361-ref.xht
index b39d333d772..942773470bb 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-361-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-361-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-361.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-361.xht
index c7c31971217..962b7745487 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-361.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-361.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-362-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-362-ref.xht
index 0431bbb8898..d8f6e23d3d5 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-362-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-362-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-362.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-362.xht
index 38ef9fcb1e2..8e801232e8e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-362.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-362.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-363-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-363-ref.xht
index 90905170d84..a910baf7dde 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-363-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-363-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-363.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-363.xht
index f4adcfa9b54..8c30ef5287c 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-363.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-363.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-364-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-364-ref.xht
index eabddf1d3cd..c51eb9ed400 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-364-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-364-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-364.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-364.xht
index 9686bca7838..d901ffae35f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-364.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-364.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-365-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-365-ref.xht
index fd6f34b76cf..b5bae4713b8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-365-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-365-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-365.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-365.xht
index 46dad35b06a..2227844f07f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-365.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-365.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-366-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-366-ref.xht
index ed2f35ada5b..0f30e570e9b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-366-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-366-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-366.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-366.xht
index aef14058d54..e70d9a93337 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-366.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-366.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-367-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-367-ref.xht
index 4da37f92bd4..8ce6b50f0ae 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-367-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-367-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-367.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-367.xht
index 6b729bfd0d0..88eef8de05d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-367.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-367.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-368-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-368-ref.xht
index 4fb9f422ee6..537de8bdf61 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-368-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-368-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-368.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-368.xht
index 0fa0257a205..70a6cd5d1eb 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-368.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-368.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-369-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-369-ref.xht
index 7d1c00d0f1c..b24460f6456 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-369-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-369-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-369.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-369.xht
index e6f8e7a9035..62a3153e938 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-369.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-369.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-370-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-370-ref.xht
index ad7d1935a0b..e859d21c816 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-370-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-370-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-370.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-370.xht
index a448facb4b0..c905bc5a742 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-370.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-370.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-371-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-371-ref.xht
index 8307aca9753..3868b55f9b4 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-371-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-371-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-371.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-371.xht
index 26d45ee16f3..70f143a550a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-371.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-371.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-372-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-372-ref.xht
index 99a24701787..f48cb70f6a9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-372-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-372-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-372.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-372.xht
index 7f84fb10e99..d33291d4911 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-372.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-372.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-373-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-373-ref.xht
index 0118ddf8344..9f68513e114 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-373-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-373-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-373.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-373.xht
index cace936844d..9ad88c6dfde 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-373.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-373.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-374-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-374-ref.xht
index 4dc34961297..acb7d45b0ce 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-374-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-374-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-374.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-374.xht
index 9f64d5d594e..ff96061879a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-374.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-374.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-375-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-375-ref.xht
index 8bcc4dcee4d..c4c19061e63 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-375-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-375-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-375.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-375.xht
index e4efe3326fb..13252eb610e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-375.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-375.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-376-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-376-ref.xht
index 17ee75eac93..f26a0106e3e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-376-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-376-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-376.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-376.xht
index 8e912eb5582..13dbc3365f2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-376.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-376.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-377-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-377-ref.xht
index ee46a5d02ba..8fa13272c6b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-377-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-377-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-377.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-377.xht
index aefc19e91cb..75d4958f46d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-377.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-377.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-378-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-378-ref.xht
index 26647eb86fc..104b932eb94 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-378-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-378-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-378.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-378.xht
index 7195696ae9e..498c065e2ce 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-378.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-378.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-379-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-379-ref.xht
index d8b686f7690..ba5920c6fd0 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-379-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-379-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-379.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-379.xht
index ad516d3a90f..73d060afde2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-379.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-379.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-380-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-380-ref.xht
index 70aa407ee2a..7c794c20d39 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-380-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-380-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-380.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-380.xht
index 5789cf29ce3..447dbb75d27 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-380.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-380.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-381-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-381-ref.xht
index 1e64b781852..a82be742b76 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-381-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-381-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-381.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-381.xht
index ba7271bcd06..3aa29292aa3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-381.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-381.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-382-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-382-ref.xht
index 62462887362..4bcc064e123 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-382-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-382-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-382.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-382.xht
index 72f9da4630c..4e9872b4d83 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-382.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-382.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-383-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-383-ref.xht
index 2e9595e2bb6..e0c30b0d311 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-383-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-383-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-383.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-383.xht
index 6e5007d0f25..0f65feb64aa 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-383.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-383.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-384-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-384-ref.xht
index e42c9b387b7..f4a9384db19 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-384-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-384-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-384.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-384.xht
index 5c2b2b6965b..40d4c30af0d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-384.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-384.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-385-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-385-ref.xht
index 122f59e69ce..8d49d32ebde 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-385-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-385-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-385.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-385.xht
index ca410fcca9d..093f6068707 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-385.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-385.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-386-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-386-ref.xht
index 938554c3ab3..819d9d536e3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-386-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-386-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-386.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-386.xht
index 51a0d3dd4b0..587d86ec301 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-386.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-386.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-387-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-387-ref.xht
index 2fb28c40577..8024a5e2719 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-387-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-387-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-387.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-387.xht
index e219cc4b688..a9b079eb20a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-387.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-387.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-388-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-388-ref.xht
index e3b1d80bd07..2c64ae80d62 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-388-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-388-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-388.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-388.xht
index 1d4e3d98cae..e17a5d3248d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-388.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-388.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-389-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-389-ref.xht
index 248d94faf8c..9d833b96336 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-389-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-389-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-389.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-389.xht
index 96ea9ca6d6b..ff1791026b8 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-389.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-389.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-390-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-390-ref.xht
index 1809748f48c..296a0f29de9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-390-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-390-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-390.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-390.xht
index 5685c1767ca..78a32e95e8e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-390.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-390.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-391-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-391-ref.xht
index 4f653ebe5b2..607aaabdd1b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-391-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-391-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-391.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-391.xht
index 32bd7f370fa..9bd83e7ba0b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-391.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-391.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-392-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-392-ref.xht
index 92b7ff20ad8..61305127b76 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-392-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-392-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-392.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-392.xht
index 9990a2becab..2f7e48c00d3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-392.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-392.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-393-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-393-ref.xht
index 956dcd58b46..a386b7d6388 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-393-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-393-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-393.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-393.xht
index a42d7a27ece..d9ac46911fc 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-393.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-393.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-394-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-394-ref.xht
index 81f6e0b3743..7c5d115f694 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-394-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-394-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-394.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-394.xht
index f55846b1e9f..c500d18b3ad 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-394.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-394.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-395-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-395-ref.xht
index f69d99502e5..bbb5dabe452 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-395-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-395-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-395.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-395.xht
index 69ba0ece7cd..91a3181d429 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-395.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-395.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-396-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-396-ref.xht
index 95e6bcc847f..8f432eb276b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-396-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-396-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-396.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-396.xht
index 18ac4d5d2ef..121eb834770 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-396.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-396.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-397-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-397-ref.xht
index 9de58a2cd19..7d8d2494ac9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-397-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-397-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-397.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-397.xht
index b67b7d07442..150335cd621 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-397.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-397.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-398-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-398-ref.xht
index 7cae5e96a58..9abad2c16d3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-398-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-398-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-398.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-398.xht
index 9d12407081b..8d2d807403f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-398.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-398.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-399-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-399-ref.xht
index c0492e10a78..8b914f113a2 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-399-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-399-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-399.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-399.xht
index fbf86630787..6e1ec54648a 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-399.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-399.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-400-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-400-ref.xht
index 94bf00b7b6d..97255cc8951 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-400-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-400-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-400.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-400.xht
index 03b4db707db..df8a433063e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-400.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-400.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-401-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-401-ref.xht
index 91059cf51ac..364948276bf 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-401-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-401-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-401.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-401.xht
index 112dd85f3da..b588f5a9b5e 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-401.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-401.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-402-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-402-ref.xht
index 1f9b9170dfd..7f7442c16df 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-402-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-402-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-402.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-402.xht
index 6460f6e9ee9..9ec9f843f5f 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-402.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-402.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-403-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-403-ref.xht
index 184e7830476..d2880813128 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-403-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-403-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-403.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-403.xht
index 1e5236e0bc1..573fbcb1861 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-403.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-403.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-404-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-404-ref.xht
index 0a7bf5717cb..e38e23d3cd1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-404-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-404-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-404.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-404.xht
index fb771cb3fd5..7186cc14404 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-404.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-404.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-405-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-405-ref.xht
index ab9e0a26006..099ce1cc245 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-405-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-405-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-405.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-405.xht
index e358eb48625..503190cec68 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-405.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-405.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-406-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-406-ref.xht
index af732ffcc77..6f22e80bd07 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-406-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-406-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-406.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-406.xht
index 141159dec69..88e4f030f1b 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-406.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-406.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-407-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-407-ref.xht
index b812d1ab399..d2cd52ebca3 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-407-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-407-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-407.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-407.xht
index 4ea6b2ed776..2d2499f7f2d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-407.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-407.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-408-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-408-ref.xht
index 4805802c9a9..85875662fad 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-408-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-408-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-408.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-408.xht
index e7f312f0e2f..cd9d5060452 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-408.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-408.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-409-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-409-ref.xht
index 57a4f054ac9..44f21b2af76 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-409-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-409-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-409.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-409.xht
index bca89ec8bb6..af64e54cb58 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-409.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-409.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-410-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-410-ref.xht
index afd29354c27..7afda986499 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-410-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-410-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-410.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-410.xht
index 501f9c678b8..3bbff2c78f9 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-410.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-410.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-411-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-411-ref.xht
index f4c2c67a302..8f5f785ce34 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-411-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-411-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-411.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-411.xht
index c1b145c66f0..502bc08b2f1 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-411.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-411.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-412-ref.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-412-ref.xht
index 09a31e85ef0..6443a39224d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-412-ref.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-412-ref.xht
@@ -8,6 +8,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-412.xht b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-412.xht
index fb61a0e67d0..a957d6c028d 100644
--- a/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-412.xht
+++ b/tests/wpt/web-platform-tests/css/CSS2/selectors/first-letter-punctuation-412.xht
@@ -12,6 +12,7 @@
             {
                 color: green;
                 font-size: 36px;
+                line-height: 2;
             }
         </style>
     </head>
diff --git a/tests/wpt/web-platform-tests/css/css-backgrounds/table-cell-background-local-ref.html b/tests/wpt/web-platform-tests/css/css-backgrounds/table-cell-background-local-ref.html
new file mode 100644
index 00000000000..b6088dd39ad
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/table-cell-background-local-ref.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+Passes if there is a brown square.
+<div id="target"
+     style="overflow: hidden; width: 100px; height: 100px;
+            background: linear-gradient(to bottom right, green, red);
+            background-attachment: local">
+  <div style="width: 3000px; height: 3000px"></div>
+</div>
+<script>
+target.scrollTop = 1500;
+target.scrollLeft = 1500;
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-backgrounds/table-cell-background-local.html b/tests/wpt/web-platform-tests/css/css-backgrounds/table-cell-background-local.html
new file mode 100644
index 00000000000..e52aa26ef20
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/table-cell-background-local.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<title>Tests rendering of table cell's background-image with local attachment.</title>
+<link rel="help" href="https://www.w3.org/TR/css-backgrounds-3/#ref-for-valdef-background-attachment-local">
+<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#valdef-overflow-hidden">
+<link rel="help" href="https://www.w3.org/TR/CSS2/visuren.html#block-formatting">
+<link rel="match" href="table-cell-background-local-ref.html">
+<meta name="assert" content="The local attachment background image of a table cell with overflow:hidden should be positioned in the scrolling area and clipped">
+Passes if there is a brown square.
+<table style="border-spacing: 0">
+  <tr>
+    <td id="target"
+        style="overflow: hidden; padding: 0;
+               background: linear-gradient(to bottom right, green, red);
+               background-attachment: local">
+      <div style="width: 100px; height: 100px">
+        <div style="width: 3000px; height: 3000px"></div>
+      </div>
+    </div>
+  </tr>
+</table>
+<script>
+target.scrollTop = 1500;
+target.scrollLeft = 1500;
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-break/META.yml b/tests/wpt/web-platform-tests/css/css-break/META.yml
index bfd40518b4a..5c3363562ab 100644
--- a/tests/wpt/web-platform-tests/css/css-break/META.yml
+++ b/tests/wpt/web-platform-tests/css/css-break/META.yml
@@ -1,3 +1,4 @@
 spec: https://drafts.csswg.org/css-break/
 suggested_reviewers:
   - mstensho
+  - rachelandrew
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/META.yml b/tests/wpt/web-platform-tests/css/css-flexbox/META.yml
index 64946c1e114..764d8cbd168 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/META.yml
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/META.yml
@@ -6,4 +6,5 @@ suggested_reviewers:
   - cbiesinger
   - atanassov
   - fantasai
+  - rachelandrew
   - tabatkins
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/hittest-overlapping-margin.html b/tests/wpt/web-platform-tests/css/css-flexbox/hittest-overlapping-margin.html
new file mode 100644
index 00000000000..5c3601d96ae
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/hittest-overlapping-margin.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<link rel="author" title="Andrew Comminos" href="mailto:acomminos@fb.com" />
+<link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#painting" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+#container {
+  width: 600px;
+  display: flex;
+}
+
+#left {
+  width: 300px;
+  overflow: hidden;
+  white-space: nowrap;
+  background: rgba(200, 200, 200, 0.8);
+}
+
+#right {
+  width: 300px;
+  background-color: rgba(0, 128, 0, 0.8);
+  margin-left: -100px;
+}
+</style>
+<div id="container">
+  <a id="left" href="#">foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo</a>
+  <div id="right"></div>
+</div>
+<div id="log"></div>
+<script>
+  test(function(t)
+    {
+      const container = document.querySelector('#container');
+      // Target the intersection of the two child elements.
+      // The occluded link should not be clickable.
+      const x = container.offsetLeft + 250;
+      const y = container.offsetTop + 5;
+
+      var element = document.elementFromPoint(x, y);
+      assert_equals(element.nodeName, 'DIV');
+      assert_equals(element.id, 'right');
+    }, "Flexboxes should perform hit testing in reverse paint order for overlapping elements: negative margin case (crbug.com/844505)");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/hittest-overlapping-relative.html b/tests/wpt/web-platform-tests/css/css-flexbox/hittest-overlapping-relative.html
new file mode 100644
index 00000000000..985ac1aed56
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/hittest-overlapping-relative.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<link rel="author" title="Andrew Comminos" href="mailto:acomminos@fb.com" />
+<link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#painting" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+#container {
+  width: 600px;
+  display: flex;
+}
+
+#left {
+  position: relative;
+  width: 300px;
+  margin-right: -100px;
+  background-color: rgba(0, 128, 0, 0.8);
+}
+
+#right {
+  width: 300px;
+  overflow: hidden;
+  white-space: nowrap;
+  background: rgba(200, 200, 200, 0.8);
+}
+
+</style>
+<div id="container">
+  <div id="left"></div>
+  <a id="right" href="#">foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo</a>
+</div>
+<div id="log"></div>
+<script>
+  test(function(t)
+    {
+      const container = document.querySelector('#container');
+      // Target the intersection of the two child elements.
+      // The occluded link should not be clickable.
+      const x = container.offsetLeft + 250;
+      const y = container.offsetTop + 5;
+
+      var element = document.elementFromPoint(x, y);
+      assert_equals(element.nodeName, 'DIV');
+      assert_equals(element.id, 'left');
+    }, "Flexboxes should perform hit testing in reverse paint order for overlapping elements: relative case (crbug.com/844505)");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/META.yml b/tests/wpt/web-platform-tests/css/css-grid/META.yml
index 18c574ac68b..af20bb4be80 100644
--- a/tests/wpt/web-platform-tests/css/css-grid/META.yml
+++ b/tests/wpt/web-platform-tests/css/css-grid/META.yml
@@ -7,4 +7,5 @@ suggested_reviewers:
   - fantasai
   - atanassov
   - javifernandez
+  - rachelandrew
   - svillar
diff --git a/tests/wpt/web-platform-tests/css/css-grid/abspos/grid-positioned-items-padding-001.html b/tests/wpt/web-platform-tests/css/css-grid/abspos/grid-positioned-items-padding-001.html
index 4941d77a71a..643a68830d4 100644
--- a/tests/wpt/web-platform-tests/css/css-grid/abspos/grid-positioned-items-padding-001.html
+++ b/tests/wpt/web-platform-tests/css/css-grid/abspos/grid-positioned-items-padding-001.html
@@ -109,13 +109,13 @@
 
 <div class="grid">
   <div class="absolute" style="grid-column: foo / 1; grid-row: foo / 1;"
-    data-offset-x="0" data-offset-y="0" data-expected-width="15" data-expected-height="15">
+    data-offset-x="15" data-offset-y="15" data-expected-width="515" data-expected-height="315">
   </div>
   <div class="absolute" style="grid-column: 1 / 2; grid-row: foo / 1;"
-    data-offset-x="15" data-offset-y="0" data-expected-width="100" data-expected-height="15">
+    data-offset-x="15" data-offset-y="15" data-expected-width="100" data-expected-height="315">
   </div>
   <div class="absolute" style="grid-column: foo / 1; grid-row: 1 / 2;"
-    data-offset-x="0" data-offset-y="15" data-expected-width="15" data-expected-height="50">
+    data-offset-x="15" data-offset-y="15" data-expected-width="515" data-expected-height="50">
   </div>
   <div class="absolute" style="grid-column: 3 / foo; grid-row: 3 / foo;"
     data-offset-x="315" data-offset-y="215" data-expected-width="215" data-expected-height="115">
@@ -193,13 +193,13 @@
 
 <div class="grid directionRTL">
   <div class="absolute" style="grid-column: foo / 1; grid-row: foo / 1;"
-    data-offset-x="515" data-offset-y="0" data-expected-width="15" data-expected-height="15">
+    data-offset-x="0" data-offset-y="15" data-expected-width="515" data-expected-height="315">
   </div>
   <div class="absolute" style="grid-column: 1 / 2; grid-row: foo / 1;"
-    data-offset-x="415" data-offset-y="0" data-expected-width="100" data-expected-height="15">
+    data-offset-x="415" data-offset-y="15" data-expected-width="100" data-expected-height="315">
   </div>
   <div class="absolute" style="grid-column: foo / 1; grid-row: 1 / 2;"
-    data-offset-x="515" data-offset-y="15" data-expected-width="15" data-expected-height="50">
+    data-offset-x="0" data-offset-y="15" data-expected-width="515" data-expected-height="50">
   </div>
   <div class="absolute" style="grid-column: 3 / foo; grid-row: 3 / foo;"
     data-offset-x="0" data-offset-y="215" data-expected-width="215" data-expected-height="115">
diff --git a/tests/wpt/web-platform-tests/css/css-grid/abspos/grid-positioned-items-unknown-named-grid-line-001.html b/tests/wpt/web-platform-tests/css/css-grid/abspos/grid-positioned-items-unknown-named-grid-line-001.html
index 24d9d769f99..6e61f7c2de3 100644
--- a/tests/wpt/web-platform-tests/css/css-grid/abspos/grid-positioned-items-unknown-named-grid-line-001.html
+++ b/tests/wpt/web-platform-tests/css/css-grid/abspos/grid-positioned-items-unknown-named-grid-line-001.html
@@ -3,7 +3,7 @@
 <title>CSS Grid Layout Test: Grid positioned items unknown named grid line</title>
 <link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
 <link rel="help" href="https://drafts.csswg.org/css-grid-1/#abspos" title="9. Absolute Positioning">
-<meta name="assert" content="This test checks that grid placement properties of absolutely positioned items using unknown named grid lines are treated as 'auto'.">
+<meta name="assert" content="This test checks that grid placement properties of absolutely positioned items can reference implicit grid lines.">
 <link rel="stylesheet" href="support/grid.css">
 <style>
 
@@ -58,7 +58,7 @@
     data-offset-x="15" data-offset-y="15" data-expected-width="515" data-expected-height="315">
   </div>
   <div class="absolute sizedToGridArea startUnknownLine"
-    data-offset-x="0" data-offset-y="0" data-expected-width="315" data-expected-height="215">
+    data-offset-x="315" data-offset-y="215" data-expected-width="215" data-expected-height="115">
   </div>
 </div>
 
@@ -70,7 +70,7 @@
     data-offset-x="0" data-offset-y="15" data-expected-width="515" data-expected-height="315">
   </div>
   <div class="absolute sizedToGridArea startUnknownLine"
-    data-offset-x="215" data-offset-y="0" data-expected-width="315" data-expected-height="215">
+    data-offset-x="0" data-offset-y="215" data-expected-width="215" data-expected-height="115">
   </div>
 </div>
 
diff --git a/tests/wpt/web-platform-tests/css/css-inline/META.yml b/tests/wpt/web-platform-tests/css/css-inline/META.yml
index 323d367b923..7253eabf54e 100644
--- a/tests/wpt/web-platform-tests/css/css-inline/META.yml
+++ b/tests/wpt/web-platform-tests/css/css-inline/META.yml
@@ -2,3 +2,4 @@ spec: https://drafts.csswg.org/css-fonts/
 suggested_reviewers:
   - dauwhe
   - fantasai
+  - rachelandrew
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/META.yml b/tests/wpt/web-platform-tests/css/css-overflow/META.yml
index 8d6c2cba90d..b9ba7acd150 100644
--- a/tests/wpt/web-platform-tests/css/css-overflow/META.yml
+++ b/tests/wpt/web-platform-tests/css/css-overflow/META.yml
@@ -2,3 +2,4 @@ spec: https://drafts.csswg.org/css-overflow/
 suggested_reviewers:
   - frivoal
   - dbaron
+  - rachelandrew
diff --git a/tests/wpt/web-platform-tests/css/css-position/position-absolute-abspos-table-dynamic.html b/tests/wpt/web-platform-tests/css/css-position/position-absolute-abspos-table-dynamic.html
new file mode 100644
index 00000000000..2b158a86f65
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-position/position-absolute-abspos-table-dynamic.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<title>CSS Position: dynamic abspos table height changes</title>
+<link rel="author" title="mailto:atotic@google.com">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://www.w3.org/TR/css-position-3/#abs-non-replaced-height">
+<meta name="assert" content="Height changes for abspos table.">
+<style>
+
+#container {
+  width: 400px;
+  height: 300px;
+  background: green;
+  position: relative;
+}
+#target {
+  display: table;
+  background: red;
+  position: absolute;
+  top: 0;
+  width: 50%;
+  height: 100px;
+}
+</style>
+<!-- There should be no red on this page -->
+<div id="container">
+  <div id="target"></div>
+</div>
+<script>
+document.body.offsetTop;
+let target = document.querySelector("#target");
+target.style.height = "auto";
+test(() => {
+  assert_equals(window.getComputedStyle(target).height, "0px");
+}, '#target height changed');
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/first-line-first-letter-insert-crash.html b/tests/wpt/web-platform-tests/css/css-pseudo/first-line-first-letter-insert-crash.html
new file mode 100644
index 00000000000..17f035dedf1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/first-line-first-letter-insert-crash.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>Should not crash when inserting an element inside a :first-line pseudo.</title>
+<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/">
+<style>
+p:first-line, p:first-letter {
+  font-family: serif;
+}
+</style>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<p id=target>
+  test<sup>sup</sup>
+</p>
+<script>
+test(()=>{
+  const target = document.getElementById('target');
+  target.insertBefore(document.createElement('img'), target.lastChild)
+});
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-regions/META.yml b/tests/wpt/web-platform-tests/css/css-regions/META.yml
index ed505dab98a..d8e38081fcf 100644
--- a/tests/wpt/web-platform-tests/css/css-regions/META.yml
+++ b/tests/wpt/web-platform-tests/css/css-regions/META.yml
@@ -2,3 +2,4 @@ spec: https://drafts.csswg.org/css-regions/
 suggested_reviewers:
   - atanassov
   - astearns
+  - rachelandrew
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/ancestor-change-heuristic.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/ancestor-change-heuristic.html
index ffe60ad775a..21adfbb6b7a 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/ancestor-change-heuristic.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/ancestor-change-heuristic.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-#space { height: 1000px; }
+#space { height: 4000px; }
 #ancestor { position: relative; }
 #before, #anchor { height: 100px; }
 #anchor { background-color: green; }
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html
index 3adcfe598a5..e9d06579d57 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html
@@ -6,7 +6,7 @@
 #changer { height: 1500px; }
 #anchor {
   width: 150px;
-  height: 1000px;
+  height: 4000px;
   background-color: pink;
 }
 
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/basic.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/basic.html
index 2c46c28dc21..99625ba7da1 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/basic.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/basic.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px; }
+body { height: 4000px; }
 div { height: 100px; }
 
 </style>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-float.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-float.html
index a86634f9ed3..ff39608ff04 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-float.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-float.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px; }
+body { height: 4000px; }
 #outer { width: 300px; }
 #outer:after { content: " "; clear:both; display: table; }
 #float {
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-overflow.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-overflow.html
index 3b469157dc2..654f34a051d 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-overflow.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-overflow.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px; }
+body { height: 4000px; }
 #outer { width: 300px; }
 #zeroheight { height: 0px; }
 #changer { height: 100px; background-color: red; }
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/exclude-fixed-position.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/exclude-fixed-position.html
index 99686bdee44..d48d3f7cedf 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/exclude-fixed-position.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/exclude-fixed-position.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px; margin: 0; }
+body { height: 4000px; margin: 0; }
 #fixed, #content { width: 200px; height: 100px; }
 #fixed { position: fixed; left: 100px; top: 50px; }
 #before { height: 50px; }
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/inline-block.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/inline-block.html
index fa7655bcd8a..881ff97de9e 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/inline-block.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/inline-block.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px }
+body { height: 4000px }
 #outer { line-height: 100px }
 #ib1, #ib2 { display: inline-block }
 
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic.html
index a7ef5525cdf..b36b211f586 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic.html
@@ -4,7 +4,7 @@
 <style>
 
 #space {
-  height: 1000px;
+  height: 4000px;
 }
 #header {
   background-color: #F5B335;
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html
index 4607c37b720..638993f079d 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html
@@ -32,9 +32,11 @@ html.vrl { writing-mode: vertical-rl; }
 .vpush { height: 80px !important; }
 .hpush { width: 70px !important; }
 
+#anchor-container {
+  display: inline-block;
+}
 #anchor {
   position: relative;
-  display: inline-block;
   background-color: #8e8;
   min-width: 100px;
   min-height: 100px;
@@ -49,8 +51,10 @@ html.vrl { writing-mode: vertical-rl; }
 </style>
 <div id="container">
   <div id="block_pusher"></div><br>
-  <div id="inline_pusher"></div><div id="anchor">
-    <div id="grower"></div>
+  <div id="inline_pusher"></div><div id="anchor-container">
+    <div id="anchor">
+      <div id="grower"></div>
+    </div>
   </div>
 </div>
 <script>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/subtree-exclusion.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/subtree-exclusion.html
index c384280f10f..25961b36642 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/subtree-exclusion.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/subtree-exclusion.html
@@ -3,7 +3,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <style>
 
-body { height: 1000px }
+body { height: 4000px }
 #A, #B { width: 100px; background-color: #afa; }
 #B { height: 100px; }
 #inner { width: 100px; height: 100px; background-color: pink; }
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/wrapped-text.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/wrapped-text.html
index 4bd2cdb3251..60f11fbcfea 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/wrapped-text.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/wrapped-text.html
@@ -7,7 +7,7 @@ body {
   position: absolute;
   font-size: 100px;
   width: 200px;
-  height: 1000px;
+  height: 4000px;
   line-height: 100px;
 }
 
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-block-invalid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-block-invalid.html
new file mode 100644
index 00000000000..371c933aa0e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-block-invalid.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-margin-block with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-margin-block">
+<meta name="assert" content="scroll-margin-block supports only the grammar '<length>{1,2}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("scroll-margin-block-start", "auto");
+test_invalid_value("scroll-margin-block-start", "20%");
+test_invalid_value("scroll-margin-block-start", "-30%");
+test_invalid_value("scroll-margin-block-start", "1px 2px");
+
+
+test_invalid_value("scroll-margin-block-end", "auto");
+test_invalid_value("scroll-margin-block-end", "20%");
+test_invalid_value("scroll-margin-block-end", "-30%");
+test_invalid_value("scroll-margin-block-end", "1px 2px");
+
+
+test_invalid_value("scroll-margin-block", "auto");
+test_invalid_value("scroll-margin-block", "20%");
+test_invalid_value("scroll-margin-block", "-30%");
+test_invalid_value("scroll-margin-block", "1px 2px 3px");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-block-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-block-valid.html
new file mode 100644
index 00000000000..f4be8994f7c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-block-valid.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-margin-block with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-margin-block">
+<meta name="assert" content="scroll-margin-block supports the full grammar '<length>{1,2}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("scroll-margin-block-start", "-10px");
+test_valid_value("scroll-margin-block-start", "calc(2em + 3ex)");
+
+
+test_valid_value("scroll-margin-block-end", "-10px");
+test_valid_value("scroll-margin-block-end", "calc(2em + 3ex)");
+
+
+test_valid_value("scroll-margin-block", "-10px");
+test_valid_value("scroll-margin-block", "calc(2em + 3ex)");
+
+test_valid_value("scroll-margin-block", "1px 2px");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-inline-invalid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-inline-invalid.html
new file mode 100644
index 00000000000..eaeb97157a6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-inline-invalid.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-margin-inline with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-margin-inline">
+<meta name="assert" content="scroll-margin-inline supports only the grammar '<length>{1,2}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("scroll-margin-inline-start", "auto");
+test_invalid_value("scroll-margin-inline-start", "20%");
+test_invalid_value("scroll-margin-inline-start", "-30%");
+test_invalid_value("scroll-margin-inline-start", "1px 2px");
+
+
+test_invalid_value("scroll-margin-inline-end", "auto");
+test_invalid_value("scroll-margin-inline-end", "20%");
+test_invalid_value("scroll-margin-inline-end", "-30%");
+test_invalid_value("scroll-margin-inline-end", "1px 2px");
+
+
+test_invalid_value("scroll-margin-inline", "auto");
+test_invalid_value("scroll-margin-inline", "20%");
+test_invalid_value("scroll-margin-inline", "-30%");
+test_invalid_value("scroll-margin-inline", "1px 2px 3px");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-inline-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-inline-valid.html
new file mode 100644
index 00000000000..a29ede3d32f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-inline-valid.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-margin-inline with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-margin-inline">
+<meta name="assert" content="scroll-margin-inline supports the full grammar '<length>{1,2}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("scroll-margin-inline-start", "-10px");
+test_valid_value("scroll-margin-inline-start", "calc(2em + 3ex)");
+
+
+test_valid_value("scroll-margin-inline-end", "-10px");
+test_valid_value("scroll-margin-inline-end", "calc(2em + 3ex)");
+
+
+test_valid_value("scroll-margin-inline", "-10px");
+test_valid_value("scroll-margin-inline", "calc(2em + 3ex)");
+test_valid_value("scroll-margin-inline", "1px 2px");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-invalid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-invalid.html
new file mode 100644
index 00000000000..97beb0d295d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-invalid.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-margin with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-margin">
+<meta name="assert" content="scroll-margin supports only the grammar '<length>{1,4}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("scroll-margin-top", "auto");
+test_invalid_value("scroll-margin-top", "20%");
+test_invalid_value("scroll-margin-top", "-30%");
+test_invalid_value("scroll-margin-top", "1px 2px");
+
+
+test_invalid_value("scroll-margin-right", "auto");
+test_invalid_value("scroll-margin-right", "20%");
+test_invalid_value("scroll-margin-right", "-30%");
+test_invalid_value("scroll-margin-right", "1px 2px");
+
+
+test_invalid_value("scroll-margin-bottom", "auto");
+test_invalid_value("scroll-margin-bottom", "20%");
+test_invalid_value("scroll-margin-bottom", "-30%");
+test_invalid_value("scroll-margin-bottom", "1px 2px");
+
+
+test_invalid_value("scroll-margin-left", "auto");
+test_invalid_value("scroll-margin-left", "20%");
+test_invalid_value("scroll-margin-left", "-30%");
+test_invalid_value("scroll-margin-left", "1px 2px");
+
+
+test_invalid_value("scroll-margin", "auto");
+test_invalid_value("scroll-margin", "20%");
+test_invalid_value("scroll-margin", "-30%");
+test_invalid_value("scroll-margin", "1px 2px 3px 4px 5px");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-valid.html
new file mode 100644
index 00000000000..ebf538cc1b5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-margin-valid.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-margin with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-margin">
+<meta name="assert" content="scroll-margin supports the full grammar '<length>{1,4}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("scroll-margin-top", "-10px");
+test_valid_value("scroll-margin-top", "calc(2em + 3ex)");
+
+
+test_valid_value("scroll-margin-right", "-10px");
+test_valid_value("scroll-margin-right", "calc(2em + 3ex)");
+
+
+test_valid_value("scroll-margin-bottom", "-10px");
+test_valid_value("scroll-margin-bottom", "calc(2em + 3ex)");
+
+
+test_valid_value("scroll-margin-left", "-10px");
+test_valid_value("scroll-margin-left", "calc(2em + 3ex)");
+
+
+test_valid_value("scroll-margin", "-10px");
+test_valid_value("scroll-margin", "calc(2em + 3ex)");
+
+test_valid_value("scroll-margin", "1px 2px");
+test_valid_value("scroll-margin", "1px 2px 3px");
+test_valid_value("scroll-margin", "1px 2px 3px 4px");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-block-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-block-valid.html
new file mode 100644
index 00000000000..0c495023db8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-block-valid.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-padding-block with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-padding-block">
+<meta name="assert" content="scroll-padding-block supports the full grammar '[ auto | <length-percentage> ]{1,2}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("scroll-padding-block-start", "auto");
+test_valid_value("scroll-padding-block-start", "10px");
+test_valid_value("scroll-padding-block-start", "20%");
+test_valid_value("scroll-padding-block-start", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-block-start", "calc(50% + 60px)");
+
+
+test_valid_value("scroll-padding-block-end", "auto");
+test_valid_value("scroll-padding-block-end", "10px");
+test_valid_value("scroll-padding-block-end", "20%");
+test_valid_value("scroll-padding-block-end", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-block-end", "calc(50% + 60px)");
+
+
+test_valid_value("scroll-padding-block", "auto");
+test_valid_value("scroll-padding-block", "10px");
+test_valid_value("scroll-padding-block", "20%");
+test_valid_value("scroll-padding-block", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-block", "calc(50% + 60px)");
+
+test_valid_value("scroll-padding-block", "1px 2px");
+test_valid_value("scroll-padding-block", "1px auto");
+test_valid_value("scroll-padding-block", "auto auto");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-inline-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-inline-valid.html
new file mode 100644
index 00000000000..60befa1b54e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-inline-valid.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-padding-inline with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-padding-inline">
+<meta name="assert" content="scroll-padding-inline supports the full grammar '[ auto | <length-percentage> ]{1,2}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("scroll-padding-inline-start", "auto");
+test_valid_value("scroll-padding-inline-start", "10px");
+test_valid_value("scroll-padding-inline-start", "20%");
+test_valid_value("scroll-padding-inline-start", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-inline-start", "calc(50% + 60px)");
+
+
+test_valid_value("scroll-padding-inline-end", "auto");
+test_valid_value("scroll-padding-inline-end", "10px");
+test_valid_value("scroll-padding-inline-end", "20%");
+test_valid_value("scroll-padding-inline-end", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-inline-end", "calc(50% + 60px)");
+
+
+test_valid_value("scroll-padding-inline", "auto");
+test_valid_value("scroll-padding-inline", "10px");
+test_valid_value("scroll-padding-inline", "20%");
+test_valid_value("scroll-padding-inline", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-inline", "calc(50% + 60px)");
+
+test_valid_value("scroll-padding-inline", "1px 2px");
+test_valid_value("scroll-padding-inline", "1px auto");
+test_valid_value("scroll-padding-inline", "auto auto");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-valid.html
new file mode 100644
index 00000000000..31d71db1b5e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-padding-valid.html
@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-padding with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-padding">
+<meta name="assert" content="scroll-padding supports the full grammar '[ <length-percentage> | auto ]{1,4}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("scroll-padding-top", "auto");
+test_valid_value("scroll-padding-top", "10px");
+test_valid_value("scroll-padding-top", "20%");
+test_valid_value("scroll-padding-top", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-top", "calc(50% + 60px)");
+
+
+test_valid_value("scroll-padding-right", "auto");
+test_valid_value("scroll-padding-right", "10px");
+test_valid_value("scroll-padding-right", "20%");
+test_valid_value("scroll-padding-right", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-right", "calc(50% + 60px)");
+
+
+test_valid_value("scroll-padding-bottom", "auto");
+test_valid_value("scroll-padding-bottom", "10px");
+test_valid_value("scroll-padding-bottom", "20%");
+test_valid_value("scroll-padding-bottom", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-bottom", "calc(50% + 60px)");
+
+
+test_valid_value("scroll-padding-left", "auto");
+test_valid_value("scroll-padding-left", "10px");
+test_valid_value("scroll-padding-left", "20%");
+test_valid_value("scroll-padding-left", "calc(2em + 3ex)");
+test_valid_value("scroll-padding-left", "calc(50% + 60px)");
+
+
+test_valid_value("scroll-padding", "auto");
+test_valid_value("scroll-padding", "10px");
+test_valid_value("scroll-padding", "20%");
+test_valid_value("scroll-padding", "calc(2em + 3ex)");
+
+test_valid_value("scroll-padding", "1px 2px");
+test_valid_value("scroll-padding", "1px 2px 3%");
+test_valid_value("scroll-padding", "1px 2px 3% 4px");
+test_valid_value("scroll-padding", "1px auto");
+test_valid_value("scroll-padding", "auto auto auto auto");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-align-invalid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-align-invalid.html
new file mode 100644
index 00000000000..c31aa3c1751
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-align-invalid.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-snap-align with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-snap-align">
+<meta name="assert" content="scroll-snap-align supports only the grammar '[ none | start | end | center ]{1,2}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("scroll-snap-align", "auto");
+
+test_invalid_value("scroll-snap-align", "start end center");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-align-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-align-valid.html
new file mode 100644
index 00000000000..163f786b7d4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-align-valid.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-snap-align with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-snap-align">
+<meta name="assert" content="scroll-snap-align supports the full grammar '[ none | start | end | center ]{1,2}'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("scroll-snap-align", "none");
+test_valid_value("scroll-snap-align", "start");
+test_valid_value("scroll-snap-align", "end");
+test_valid_value("scroll-snap-align", "center");
+
+test_valid_value("scroll-snap-align", "start none");
+test_valid_value("scroll-snap-align", "center end");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-stop-invalid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-stop-invalid.html
new file mode 100644
index 00000000000..67feda0ca75
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-stop-invalid.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-snap-stop with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-snap-stop">
+<meta name="assert" content="scroll-snap-stop supports only the grammar 'normal | always'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("scroll-snap-stop", "auto");
+
+test_invalid_value("scroll-snap-stop", "normal always");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-stop-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-stop-valid.html
new file mode 100644
index 00000000000..a59caff396e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-stop-valid.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-snap-stop with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-snap-stop">
+<meta name="assert" content="scroll-snap-stop supports the full grammar 'normal | always'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("scroll-snap-stop", "normal");
+test_valid_value("scroll-snap-stop", "always");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-type-invalid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-type-invalid.html
new file mode 100644
index 00000000000..72306dc0908
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-type-invalid.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-snap-type with invalid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-snap-type">
+<meta name="assert" content="scroll-snap-type supports only the grammar 'none | [ x | y | block | inline | both ] [ mandatory | proximity ]?'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_invalid_value("scroll-snap-type", "auto");
+
+test_invalid_value("scroll-snap-type", "x y");
+test_invalid_value("scroll-snap-type", "block mandatory inline");
+
+test_invalid_value("scroll-snap-type", "mandatory");
+test_invalid_value("scroll-snap-type", "proximity");
+test_invalid_value("scroll-snap-type", "mandatory inline");
+test_invalid_value("scroll-snap-type", "proximity both");
+test_invalid_value("scroll-snap-type", "mandatory x");
+test_invalid_value("scroll-snap-type", "proximity y");
+test_invalid_value("scroll-snap-type", "mandatory block");
+test_invalid_value("scroll-snap-type", "proximity mandatory");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-type-valid.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-type-valid.html
new file mode 100644
index 00000000000..fde2211f925
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/parsing/scroll-snap-type-valid.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Scroll Snap Test: scroll-snap-type with valid values</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#propdef-scroll-snap-type">
+<meta name="assert" content="scroll-snap-type supports the full grammar 'none | [ x | y | block | inline | both ] [ mandatory | proximity ]?'.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+test_valid_value("scroll-snap-type", "none");
+
+test_valid_value("scroll-snap-type", "x");
+test_valid_value("scroll-snap-type", "y");
+test_valid_value("scroll-snap-type", "block");
+test_valid_value("scroll-snap-type", "inline");
+test_valid_value("scroll-snap-type", "both");
+
+test_valid_value("scroll-snap-type", "y mandatory");
+test_valid_value("scroll-snap-type", "inline proximity");
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-tables/META.yml b/tests/wpt/web-platform-tests/css/css-tables/META.yml
index ac81381ef56..b5372064ac2 100644
--- a/tests/wpt/web-platform-tests/css/css-tables/META.yml
+++ b/tests/wpt/web-platform-tests/css/css-tables/META.yml
@@ -3,3 +3,4 @@ suggested_reviewers:
   - dbaron
   - FremyCompany
   - gregwhitworth
+  - rachelandrew
diff --git a/tests/wpt/web-platform-tests/css/css-text/tab-size/tab-size-spacing-001-ref.html b/tests/wpt/web-platform-tests/css/css-text/tab-size/tab-size-spacing-001-ref.html
new file mode 100644
index 00000000000..2711617476d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-text/tab-size/tab-size-spacing-001-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Text level 3 Test reference</title>
+<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net/">
+<style>
+div {
+  font-family: monospace;
+  width: 20px;
+  height: 20px;
+  background: green;
+  margin-left: calc( 8ch + 8 * 2px + 8 * 10px );
+}
+</style>
+
+<p>Test passes if there is a green square and no red.
+<div></div>
diff --git a/tests/wpt/web-platform-tests/css/css-text/tab-size/tab-size-spacing-001.html b/tests/wpt/web-platform-tests/css/css-text/tab-size/tab-size-spacing-001.html
new file mode 100644
index 00000000000..65943dcd32a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-text/tab-size/tab-size-spacing-001.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Text level 3 Test: tab-size, word-spacing and letter-spacing</title>
+<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net/">
+<link rel="help" href="https://drafts.csswg.org/css-text-3/#tab-size-property">
+<link rel="help" href="https://drafts.csswg.org/css-text-3/#word-spacing-property">
+<link rel="help" href="https://drafts.csswg.org/css-text-3/#letter-spacing-property">
+<link rel="match" href="tab-size-spacing-001-ref.html">
+<meta name="assert" content="For the tab-size property, a <number> represents the measure as a multiple of the space character’s advance width (U+0020) including its associated letter-spacing and word-spacing">
+<style>
+.test {
+  white-space: pre;
+  tab-size: 8; /* the initial value, but since we're measuring against it, we might as well be sure */
+  font-family: monospace; /* because the ch unit is based on the size of the 0 character,
+                             and we want to measure space characters
+                             so they need to be the same size. */
+  letter-spacing: 2px;
+  word-spacing: 10px;
+}
+span {
+  display: inline-block;
+  width: 20px;
+  height: 20px;
+  background: green;
+}
+.ref {
+  position: absolute;
+  z-index: -1;
+  width: 20px;
+  height: 20px;
+  background: red;
+  margin-left: calc( 8ch + 8 * 2px + 8 * 10px );
+
+   /* this is to avoid antialiasing effects at the edge */
+   box-sizing: border-box;
+   border: 2px solid white;
+}
+</style>
+
+<p>Test passes if there is a green square and no red.
+<div class=ref></div>
+<div class=test>&#x09;<span></span></div>
diff --git a/tests/wpt/web-platform-tests/css/css-ui/inheritance.html b/tests/wpt/web-platform-tests/css/css-ui/inheritance.html
index 912e9f3228f..6315316d822 100644
--- a/tests/wpt/web-platform-tests/css/css-ui/inheritance.html
+++ b/tests/wpt/web-platform-tests/css/css-ui/inheritance.html
@@ -19,24 +19,32 @@
 #reference {
   border-style: dotted; /* Avoid border-top-width computed style 0 */
   border-top-width: medium;
+  color: lime;
+  background: blue;
 }
 
 #container, #target {
   outline-style: dotted; /* Avoid outline-width computed style 0 */
+  color: lime;
+  background: blue;
 }
 </style>
 <script>
 const mediumWidth = getComputedStyle(reference).borderTopWidth; // e.g. 3px
+const currentColor = getComputedStyle(reference).color;
 
 assert_not_inherited('appearance', 'auto', 'none');
-assert_inherited('caret-color', 'auto', 'rgba(42, 53, 64, 0.75)');
+assert_inherited('caret-color', currentColor, 'rgba(42, 53, 64, 0.75)');
 assert_inherited('caret-shape', 'auto', 'bar');
 assert_inherited('cursor', 'auto', 'pointer');
 assert_not_inherited('nav-down', 'auto', '#foo');
 assert_not_inherited('nav-left', 'auto', '#foo');
 assert_not_inherited('nav-right', 'auto', '#foo');
 assert_not_inherited('nav-up', 'auto', '#foo');
-assert_not_inherited('outline-color', 'invert', 'rgba(42, 53, 64, 0.75)');
+if (CSS.supports('outline-color', 'invert'))
+  assert_not_inherited('outline-color', 'invert', 'rgba(42, 53, 64, 0.75)');
+else
+  assert_not_inherited('outline-color', currentColor, 'rgba(42, 53, 64, 0.75)');
 assert_not_inherited('outline-offset', '0px', '10px');
 assert_not_inherited('outline-style', 'none', 'auto');
 assert_not_inherited('outline-width', mediumWidth, '10px');
diff --git a/tests/wpt/web-platform-tests/css/cssom/cssom-pagerule.html b/tests/wpt/web-platform-tests/css/cssom/cssom-pagerule.html
new file mode 100644
index 00000000000..c7604eba338
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/cssom/cssom-pagerule.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<title>CSSOM: CSSPageRule tests</title>
+<link rel="help" href="https://drafts.csswg.org/cssom/#the-csspagerule-interface" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  @page {}
+</style>
+<script>
+  const sheet = document.styleSheets[0];
+  const rule = sheet.cssRules[0];
+
+  test(() => {
+    assert_true(!!rule);
+    assert_equals(rule.type, CSSRule.PAGE_RULE);
+  }, "Sanity checks");
+
+  test(() => {
+    assert_equals(rule.selectorText, "");
+  }, "Page selector is initially the empty string");
+
+  test(() => {
+    rule.selectorText = ":left";
+    assert_equals(rule.selectorText, ":left");
+  }, "Set selectorText to :left pseudo page");
+
+  test(() => {
+    rule.selectorText = "named";
+    assert_equals(rule.selectorText, "named");
+  }, "Set selectorText to named page");
+
+  test(() => {
+    rule.selectorText = "named:first";
+    assert_equals(rule.selectorText, "named:first");
+  }, "Set selectorText to named page with :first pseudo page");
+
+  test(() => {
+    assert_equals(rule.parentStyleSheet, sheet);
+    sheet.deleteRule(0);
+    assert_equals(rule.parentStyleSheet, null);
+    rule.selectorText = "pagename";
+  }, "Set selectorText to named page after rule was removed");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/mediaqueries/prefers-color-scheme.html b/tests/wpt/web-platform-tests/css/mediaqueries/prefers-color-scheme.html
new file mode 100644
index 00000000000..705a7ca47f8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/mediaqueries/prefers-color-scheme.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/mediaqueries-5/#prefers-color-scheme" />
+<script type="text/javascript" src="/resources/testharness.js"></script>
+<script type="text/javascript" src="/resources/testharnessreport.js"></script>
+<style id="testStyle"> </style>
+<script>
+  var sheet = testStyle.sheet;
+
+  function query_is_parseable(query) {
+    try {
+      sheet.insertRule("@media " + query + "{}", 0);
+      return sheet.cssRules.length == 1 &&
+          sheet.cssRules[0].media.mediaText != "not all";
+    } finally {
+      while (sheet.cssRules.length)
+        sheet.deleteRule(0);
+    }
+  }
+
+  function query_should_be_parseable(query) {
+    test(() => {
+      assert_true(query_is_parseable(query));
+    }, "Should be parseable: '" + query + "'");
+  }
+
+  function query_should_not_be_parseable(query) {
+    test(() => {
+      assert_false(query_is_parseable(query));
+    }, "Should not be parseable: '" + query + "'");
+  }
+
+  query_should_be_parseable("(prefers-color-scheme)");
+  query_should_be_parseable("(prefers-color-scheme: no-preference)");
+  query_should_be_parseable("(prefers-color-scheme: light)");
+  query_should_be_parseable("(prefers-color-scheme: dark)");
+
+  query_should_not_be_parseable("(prefers-color-scheme: 0)");
+  query_should_not_be_parseable("(prefers-color-scheme: none)");
+  query_should_not_be_parseable("(prefers-color-scheme: 10px)");
+  query_should_not_be_parseable("(prefers-color-scheme: dark 0)");
+  query_should_not_be_parseable("(prefers-color-scheme: dark light)");
+  query_should_not_be_parseable("(prefers-color-scheme: light/dark)");
+
+  test(() => {
+    let booleanContext = window.matchMedia("(prefers-color-scheme)");
+    let noPreference = window.matchMedia("(prefers-color-scheme: no-preference)");
+    assert_equals(booleanContext.matches, !noPreference.matches);
+  }, "Check that no-preference evaluates to false in the boolean context");
+</script>
diff --git a/tests/wpt/web-platform-tests/dom/collections/HTMLCollection-delete.html b/tests/wpt/web-platform-tests/dom/collections/HTMLCollection-delete.html
new file mode 100644
index 00000000000..6f5b9326bb9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/dom/collections/HTMLCollection-delete.html
@@ -0,0 +1,45 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Deleting properties from HTMLCollection</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<div id=log></div>
+<i id=foo></i>
+<script>
+let c, expected;
+setup(() => {
+  // These might be cached anyway, so explicitly use a single object.
+  c = document.getElementsByTagName("i");
+  expected = document.getElementById("foo");
+});
+
+test(() => {
+  assert_equals(c[0], expected, "before");
+  delete c[0];
+  assert_equals(c[0], expected, "after");
+}, "Loose id");
+
+test(() => {
+  assert_equals(c[0], expected, "before");
+  assert_throws(new TypeError(), function() {
+    "use strict";
+    delete c[0];
+  });
+  assert_equals(c[0], expected, "after");
+}, "Strict id");
+
+test(() => {
+  assert_equals(c.foo, expected, "before");
+  delete c.foo;
+  assert_equals(c.foo, expected, "after");
+}, "Loose name");
+
+test(() => {
+  assert_equals(c.foo, expected, "before");
+  assert_throws(new TypeError(), function() {
+    "use strict";
+    delete c.foo;
+  });
+  assert_equals(c.foo, expected, "after");
+}, "Strict name");
+</script>
diff --git a/tests/wpt/web-platform-tests/dom/events/Event-dispatch-click.html b/tests/wpt/web-platform-tests/dom/events/Event-dispatch-click.html
index 4aa4bbe4877..2241d57e511 100644
--- a/tests/wpt/web-platform-tests/dom/events/Event-dispatch-click.html
+++ b/tests/wpt/web-platform-tests/dom/events/Event-dispatch-click.html
@@ -74,17 +74,17 @@ async_test(function(t) {
   t.done()
 }, "pick the first with activation behavior <input type=checkbox>")
 
-var globalCounter = 0 // sorry
 async_test(function(t) { // as above with <a>
-  var i = 0
+  window.hrefComplete = t.step_func(function(a) {
+    assert_equals(a, 'child');
+    t.done();
+  });
   var link = document.createElement("a")
-  link.href = "javascript:(function(){globalCounter--})()" // must not be triggered
+  link.href = "javascript:hrefComplete('link')" // must not be triggered
   dump.appendChild(link)
   var child = link.appendChild(document.createElement("a"))
-  child.href = "javascript:(function(){globalCounter++})()"
+  child.href = "javascript:hrefComplete('child')"
   child.dispatchEvent(new MouseEvent("click", {bubbles:true}))
-  assert_equals(globalCounter, 1)
-  t.done()
 }, "pick the first with activation behavior <a href>")
 
 async_test(function(t) {
diff --git a/tests/wpt/web-platform-tests/encoding/encodeInto.any.js b/tests/wpt/web-platform-tests/encoding/encodeInto.any.js
index 2abc69744d7..fda0d1b72ce 100644
--- a/tests/wpt/web-platform-tests/encoding/encodeInto.any.js
+++ b/tests/wpt/web-platform-tests/encoding/encodeInto.any.js
@@ -136,9 +136,14 @@ test(() => {
 test(() => {
   const buffer = new ArrayBuffer(10),
         view = new Uint8Array(buffer);
-  const { read, written } = new TextEncoder().encodeInto("", view);
+  let { read, written } = new TextEncoder().encodeInto("", view);
   assert_equals(read, 0);
   assert_equals(written, 0);
-  self.postMessage(buffer, "/", [buffer]);
-  assert_throws(new TypeError(), () => new TextEncoder().encodeInto("", view));
-}, "encodeInto() cannot operate on a detached buffer");
+  new MessageChannel().port1.postMessage(buffer, [buffer]);
+  ({ read, written } = new TextEncoder().encodeInto("", view));
+  assert_equals(read, 0);
+  assert_equals(written, 0);
+  ({ read, written } = new TextEncoder().encodeInto("test", view));
+  assert_equals(read, 0);
+  assert_equals(written, 0);
+}, "encodeInto() and a detached output buffer");
diff --git a/tests/wpt/web-platform-tests/encoding/streams/decode-bad-chunks.any.js b/tests/wpt/web-platform-tests/encoding/streams/decode-bad-chunks.any.js
index 101fb3aeb61..de2ba74c101 100644
--- a/tests/wpt/web-platform-tests/encoding/streams/decode-bad-chunks.any.js
+++ b/tests/wpt/web-platform-tests/encoding/streams/decode-bad-chunks.any.js
@@ -23,26 +23,6 @@ const badChunks = [
     name: 'array',
     value: [65]
   },
-  {
-    name: 'detached ArrayBufferView',
-    value: (() => {
-      const u8 = new Uint8Array([65]);
-      const ab = u8.buffer;
-      const mc = new MessageChannel();
-      mc.port1.postMessage(ab, [ab]);
-      return u8;
-    })()
-  },
-  {
-    name: 'detached ArrayBuffer',
-    value: (() => {
-      const u8 = new Uint8Array([65]);
-      const ab = u8.buffer;
-      const mc = new MessageChannel();
-      mc.port1.postMessage(ab, [ab]);
-      return ab;
-    })()
-  },
   {
     name: 'SharedArrayBuffer',
     // Use a getter to postpone construction so that all tests don't fail where
diff --git a/tests/wpt/web-platform-tests/encoding/streams/decode-utf8.any.js b/tests/wpt/web-platform-tests/encoding/streams/decode-utf8.any.js
index 34fa764bf0a..266899c6c96 100644
--- a/tests/wpt/web-platform-tests/encoding/streams/decode-utf8.any.js
+++ b/tests/wpt/web-platform-tests/encoding/streams/decode-utf8.any.js
@@ -39,3 +39,23 @@ promise_test(async () => {
   assert_array_equals(array, [expectedOutputString],
                       'the output should be in one chunk');
 }, 'a trailing empty chunk should be ignored');
+
+promise_test(async () => {
+  const buffer = new ArrayBuffer(3);
+  const view = new Uint8Array(buffer, 1, 1);
+  view[0] = 65;
+  new MessageChannel().port1.postMessage(buffer, [buffer]);
+  const input = readableStreamFromArray([view]);
+  const output = input.pipeThrough(new TextDecoderStream());
+  const array = await readableStreamToArray(output);
+  assert_array_equals(array, [], 'no chunks should be output');
+}, 'decoding a transferred Uint8Array chunk should give no output');
+
+promise_test(async () => {
+  const buffer = new ArrayBuffer(1);
+  new MessageChannel().port1.postMessage(buffer, [buffer]);
+  const input = readableStreamFromArray([buffer]);
+  const output = input.pipeThrough(new TextDecoderStream());
+  const array = await readableStreamToArray(output);
+  assert_array_equals(array, [], 'no chunks should be output');
+}, 'decoding a transferred ArrayBuffer chunk should give no output');
diff --git a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html.headers b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html.headers
index ea8722131ce..d021af75636 100644
--- a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html.headers
+++ b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html.headers
@@ -1 +1 @@
-Feature-Policy: xr 'none'
+Feature-Policy: vr 'none'
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/embed.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/embed.tentative.https.sub.html
index 745ef42d484..1c69c021acc 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/embed.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/embed.tentative.https.sub.html
@@ -13,7 +13,7 @@
       let e = document.createElement('embed');
       e.src = "https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
       e.onload = e => {
-        let expected = {"destination":"embed", "site":"same-origin"};
+        let expected = {"dest":"embed", "site":"same-origin", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
@@ -32,7 +32,7 @@
       let e = document.createElement('embed');
       e.src = "https://{{hosts[][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
       e.onload = e => {
-        let expected = {"destination":"embed", "site":"same-site"};
+        let expected = {"dest":"embed", "site":"same-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
@@ -51,7 +51,7 @@
       let e = document.createElement('embed');
       e.src = "https://{{hosts[alt][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
       e.onload = e => {
-        let expected = {"destination":"embed", "site":"cross-site"};
+        let expected = {"dest":"embed", "site":"cross-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/fetch.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/fetch.tentative.https.sub.html
index d18042ca98b..f6460b4efca 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/fetch.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/fetch.tentative.https.sub.html
@@ -7,10 +7,10 @@
     return fetch("https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/echo-as-json.py")
         .then(r => r.json())
         .then(j => {
-          assert_header_equals(j.header, {
-            "cause": undefined,
-            "destination": "empty",
-            "site": "same-origin"
+          assert_header_equals(j, {
+            "dest": "empty",
+            "site": "same-origin",
+            "user":"?F"
           });
         });
   }, "Same-origin fetch");
@@ -19,10 +19,10 @@
     return fetch("https://{{hosts[][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/echo-as-json.py")
         .then(r => r.json())
         .then(j => {
-          assert_header_equals(j.header, {
-            "cause": undefined,
-            "destination": "empty",
-            "site": "same-site"
+          assert_header_equals(j, {
+            "dest": "empty",
+            "site": "same-site",
+            "user":"?F"
           });
         });
   }, "Same-site fetch");
@@ -31,10 +31,10 @@
     return fetch("https://{{hosts[alt][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/echo-as-json.py")
         .then(r => r.json())
         .then(j => {
-          assert_header_equals(j.header, {
-            "cause": undefined,
-            "destination": "empty",
-            "site": "cross-site"
+          assert_header_equals(j, {
+            "dest": "empty",
+            "site": "cross-site",
+            "user":"?F"
           });
         });
   }, "Cross-site fetch");
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/font.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/font.tentative.https.sub.html
index 0a75531c405..d2bcf692884 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/font.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/font.tentative.https.sub.html
@@ -46,7 +46,7 @@
     promise_test(t => {
       return new Promise((resolve, reject) => {
         let key = "font-same-origin";
-        let expected = {"destination":"font", "site":"same-origin"};
+        let expected = {"dest":"font", "site":"same-origin", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
@@ -58,7 +58,7 @@
     promise_test(t => {
       return new Promise((resolve, reject) => {
         let key = "font-same-site";
-        let expected = {"destination":"font", "site":"same-site"};
+        let expected = {"dest":"font", "site":"same-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
@@ -70,7 +70,7 @@
     promise_test(t => {
       return new Promise((resolve, reject) => {
         let key = "font-cross-site";
-        let expected = {"destination":"font", "site":"cross-site"};
+        let expected = {"dest":"font", "site":"cross-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/iframe.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/iframe.tentative.https.sub.html
index 8d89cda8936..6ee14300296 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/iframe.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/iframe.tentative.https.sub.html
@@ -12,9 +12,9 @@
         return;
 
       assert_header_equals(e.data, {
-        "cause": "forced",
-        "destination": "nested-document",
-        "site": "same-origin"
+        "dest": "nested-document",
+        "site": "same-origin",
+        "user":"?F"
       });
       t.done();
     }));
@@ -30,9 +30,9 @@
         return;
 
       assert_header_equals(e.data, {
-        "cause": "forced",
-        "destination": "nested-document",
-        "site": "same-site"
+        "dest": "nested-document",
+        "site": "same-site",
+        "user": "?F"
       });
       t.done();
     }));
@@ -48,9 +48,9 @@
         return;
 
       assert_header_equals(e.data, {
-        "cause": "forced",
-        "destination": "nested-document",
-        "site": "cross-site"
+        "dest": "nested-document",
+        "site": "cross-site",
+        "user": "?F"
       });
       t.done();
     }));
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/img.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/img.tentative.https.sub.html
index 20701a65146..c5c389503cc 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/img.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/img.tentative.https.sub.html
@@ -11,10 +11,17 @@
     loadImageInWindow(
       "https://{{host}}:{{ports[https][0]}}/referrer-policy/generic/subresource/image.py",
       t.step_func_done(img => {
-        assert_header_equals(decodeImageData(extractImageData(img)).headers["sec-metadata"], {
-          "cause": undefined,
-          "destination": "image",
-          "site": "same-origin"
+        headers = decodeImageData(extractImageData(img)).headers;
+        got = {
+        "dest": headers["sec-fetch-dest"],
+        "mode": headers["sec-fetch-mode"],
+        "site": headers["sec-fetch-site"],
+        "user": headers["sec-fetch-user"]
+        };
+        assert_header_equals(got, {
+          "dest": "image",
+          "site": "same-origin",
+          "user": "?F"
         });
       }),
       [],
@@ -25,10 +32,17 @@
     loadImageInWindow(
       "https://{{hosts[][www]}}:{{ports[https][0]}}/referrer-policy/generic/subresource/image.py",
       t.step_func_done(img => {
-        assert_header_equals(decodeImageData(extractImageData(img)).headers["sec-metadata"], {
-          "cause": undefined,
-          "destination": "image",
-          "site": "same-site"
+        headers = decodeImageData(extractImageData(img)).headers;
+        got = {
+        "dest": headers["sec-fetch-dest"],
+        "mode": headers["sec-fetch-mode"],
+        "site": headers["sec-fetch-site"],
+        "user": headers["sec-fetch-user"]
+        };
+        assert_header_equals(got, {
+          "dest": "image",
+          "site": "same-site",
+          "user": "?F"
         });
       }),
       [],
@@ -39,10 +53,17 @@
     loadImageInWindow(
       "https://{{hosts[alt][www]}}:{{ports[https][0]}}/referrer-policy/generic/subresource/image.py",
       t.step_func_done(img => {
-        assert_header_equals(decodeImageData(extractImageData(img)).headers["sec-metadata"], {
-          "cause": undefined,
-          "destination": "image",
-          "site": "cross-site"
+        headers = decodeImageData(extractImageData(img)).headers;
+        got = {
+        "dest": headers["sec-fetch-dest"],
+        "mode": headers["sec-fetch-mode"],
+        "site": headers["sec-fetch-site"],
+        "user": headers["sec-fetch-user"]
+        };
+        assert_header_equals(got, {
+          "dest": "image",
+          "site": "cross-site",
+          "user": "?F"
         });
       }),
       [],
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/object.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/object.tentative.https.sub.html
index e1ac53157e0..0b9839470d1 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/object.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/object.tentative.https.sub.html
@@ -13,7 +13,7 @@
       let e = document.createElement('object');
       e.data = "https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
       e.onload = e => {
-        let expected = {"destination":"object", "site":"same-origin"};
+        let expected = {"dest":"object", "site":"same-origin", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
@@ -32,7 +32,7 @@
       let e = document.createElement('object');
       e.data = "https://{{hosts[][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
       e.onload = e => {
-        let expected = {"destination":"object", "site":"same-site"};
+        let expected = {"dest":"object", "site":"same-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
@@ -51,7 +51,7 @@
       let e = document.createElement('object');
       e.data = "https://{{hosts[alt][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
       e.onload = e => {
-        let expected = {"destination":"object", "site":"cross-site"};
+        let expected = {"dest":"object", "site":"cross-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/cross-site-redirect.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/cross-site-redirect.tentative.https.sub.html
index 9f497a9b62b..56d88d9156c 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/cross-site-redirect.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/cross-site-redirect.tentative.https.sub.html
@@ -12,7 +12,7 @@ promise_test(t => {
 
       let e = document.createElement('img');
       e.src = "https://{{hosts[alt][www]}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
-      let expected = {"destination":"image", "site":"cross-site"};
+      let expected = {"dest":"image", "site":"cross-site", "user":"?F"};
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
@@ -38,7 +38,7 @@ promise_test(t => {
 
       let e = document.createElement('img');
       e.src = "https://{{hosts[alt][www]}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=https://{{hosts[][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
-      let expected = {"destination":"image", "site":"cross-site"};
+      let expected = {"dest":"image", "site":"cross-site", "user":"?F"};
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
@@ -64,7 +64,7 @@ promise_test(t => {
 
       let e = document.createElement('img');
       e.src = "https://{{hosts[alt][www]}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=https://{{hosts[alt][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
-      let expected = {"destination":"image", "site":"cross-site"};
+      let expected = {"dest":"image", "site":"cross-site", "user":"?F"};
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/multiple-redirect-cross-site.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/multiple-redirect-cross-site.tentative.https.sub.html
index fdd8733ba6d..f6d18f568f1 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/multiple-redirect-cross-site.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/multiple-redirect-cross-site.tentative.https.sub.html
@@ -14,7 +14,7 @@ promise_test(t => {
       e.src = "https://{{host}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=" +// same-origin
       "https://{{hosts[alt][www]}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=" +// cross-site
       "https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;// same-origin
-      let expected = {"destination":"image", "site":"cross-site"};
+      let expected = {"dest":"image", "site":"cross-site", "user":"?F"};
 
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/multiple-redirect-same-site.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/multiple-redirect-same-site.tentative.https.sub.html
index 8fdc943f4c9..4756a79ab25 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/multiple-redirect-same-site.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/multiple-redirect-same-site.tentative.https.sub.html
@@ -14,7 +14,7 @@ promise_test(t => {
       e.src = "https://{{host}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=" +// same-origin
       "https://{{hosts[][www]}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=" +// same-site
       "https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;// same-origin
-      let expected = {"destination":"image", "site":"same-site"};
+      let expected = {"dest":"image", "site":"same-site", "user":"?F"};
 
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/same-origin-redirect.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/same-origin-redirect.tentative.https.sub.html
index dea71c3f67d..8558d6890e6 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/same-origin-redirect.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/same-origin-redirect.tentative.https.sub.html
@@ -12,7 +12,7 @@ promise_test(t => {
 
       let e = document.createElement('img');
       e.src = "/xhr/resources/redirect.py?location=https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
-      let expected = {"destination":"image", "site":"same-origin"};
+      let expected = {"dest":"image", "site":"same-origin", "user":"?F"};
 
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
@@ -39,7 +39,7 @@ promise_test(t => {
 
       let e = document.createElement('img');
       e.src = "/xhr/resources/redirect.py?location=https://{{hosts[][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
-      let expected = {"destination":"image", "site":"same-site"};
+      let expected = {"dest":"image", "site":"same-site", "user":"?F"};
 
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
@@ -66,7 +66,7 @@ promise_test(t => {
 
       let e = document.createElement('img');
       e.src = "/xhr/resources/redirect.py?location=https://{{hosts[alt][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
-      let expected = {"destination":"image", "site":"cross-site"};
+      let expected = {"dest":"image", "site":"cross-site", "user":"?F"};
 
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/same-site-redirect.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/same-site-redirect.tentative.https.sub.html
index a71163a1bfc..8e05b255b88 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/same-site-redirect.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/redirect/same-site-redirect.tentative.https.sub.html
@@ -12,7 +12,7 @@ promise_test(t => {
 
       let e = document.createElement('img');
       e.src = "https://{{hosts[][www]}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
-      let expected = {"destination":"image", "site":"same-site"};
+      let expected = {"dest":"image", "site":"same-site", "user":"?F"};
 
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
@@ -39,7 +39,7 @@ promise_test(t => {
 
       let e = document.createElement('img');
       e.src = "https://{{hosts[][www]}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
-      let expected = {"destination":"image", "site":"same-site"};
+      let expected = {"dest":"image", "site":"same-site", "user":"?F"};
 
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
@@ -66,7 +66,7 @@ promise_test(t => {
 
       let e = document.createElement('img');
       e.src = "https://{{hosts[][www]}}:{{ports[https][0]}}/xhr/resources/redirect.py?location=https://{{hosts[alt][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
-      let expected = {"destination":"image", "site":"cross-site"};
+      let expected = {"dest":"image", "site":"cross-site", "user":"?F"};
 
       e.onload = e => {
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/report.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/report.tentative.https.sub.html
index a74da6a7a7d..1cfa8641ba8 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/report.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/report.tentative.https.sub.html
@@ -22,9 +22,9 @@
     document.addEventListener("securitypolicyviolation", (e) => {
       counter++;
       if (counter == 3) {
-        generate_test({"destination":"report", "site":"same-origin"}, "same-origin");
-        generate_test({"destination":"report", "site":"same-site"}, "same-site");
-        generate_test({"destination":"report", "site":"cross-site"}, "cross-site");
+        generate_test({"dest":"report", "site":"same-origin", "user":"?F"}, "same-origin");
+        generate_test({"dest":"report", "site":"same-site", "user":"?F"}, "same-site");
+        generate_test({"dest":"report", "site":"cross-site", "user":"?F"}, "cross-site");
       }
     });
   }, "Initialization.");
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/echo-as-json.py b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/echo-as-json.py
index 16cc67774f7..ce5a2d925d1 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/echo-as-json.py
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/echo-as-json.py
@@ -8,5 +8,10 @@ def main(request, response):
         headers.append(("Access-Control-Allow-Origin", request.headers["origin"]))
 
 
-    body = json.dumps({ "header": request.headers.get("sec-metadata", "") })
+    body = json.dumps({
+        "dest": request.headers.get("sec-fetch-dest", ""),
+        "mode": request.headers.get("sec-fetch-mode", ""),
+        "site": request.headers.get("sec-fetch-site", ""),
+        "user": request.headers.get("sec-fetch-user", ""),
+        })
     return headers, body
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/echo-as-script.py b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/echo-as-script.py
index c1c6a4673ac..7884b096d99 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/echo-as-script.py
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/echo-as-script.py
@@ -3,6 +3,11 @@ import json
 def main(request, response):
     headers = [("Content-Type", "text/javascript")]
 
-    body = "var header = %s;" % json.dumps(request.headers.get("sec-metadata", ""));
+    body = "var header = %s;" % json.dumps({
+        "dest": request.headers.get("sec-fetch-dest", ""),
+        "mode": request.headers.get("sec-fetch-mode", ""),
+        "site": request.headers.get("sec-fetch-site", ""),
+        "user": request.headers.get("sec-fetch-user", ""),
+        });
 
     return headers, body
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/helper.js b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/helper.js
index 037f7e1e1de..1a9ec154e02 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/helper.js
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/helper.js
@@ -1,18 +1,11 @@
-function parse_metadata(value) {
-  let result = {};
-  value.split(',').forEach(item => {
-    let parsed = item.trim().split('=');
-    result[parsed[0]] = parsed[1];
-  });
-  return result;
-}
-
 function assert_header_equals(value, expected) {
-  // check that the returned value is an object, not a String
-  assert_not_equals(value, "", "Empty Sec-Metadata header.");
-  let result = parse_metadata(value);
-  assert_equals(result.cause, expected.cause, "cause");
-  assert_equals(result.destination, expected.destination, "destination");
-  assert_equals(result.target, expected.target, "target");
-  assert_equals(result.site, expected.site, "site");
+  if (typeof(value) === "string"){
+    assert_not_equals(value, "No header has been recorded");
+    value = JSON.parse(value);
+  }
+  assert_equals(value.dest, expected.dest, "dest");
+  // Mode is commented out as no test cases have been filled out yet
+  // assert_equals(value.mode, expected.mode, "mode");
+  assert_equals(value.site, expected.site, "site");
+  assert_equals(value.user, expected.user, "user");
 }
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/post-to-owner.py b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/post-to-owner.py
index 5472aa5b47e..81d4ebf74e3 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/post-to-owner.py
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/post-to-owner.py
@@ -12,5 +12,10 @@ def main(request, response):
             if (window.top != window)
                 window.top.postMessage(data, "*");
         </script>
-    """ % json.dumps(request.headers.get("Sec-Metadata", ""))
+    """ % json.dumps({
+        "dest": request.headers.get("sec-fetch-dest", ""),
+        "mode": request.headers.get("sec-fetch-mode", ""),
+        "site": request.headers.get("sec-fetch-site", ""),
+        "user": request.headers.get("sec-fetch-user", ""),
+        })
     return headers, body
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/record-header.py b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/record-header.py
index adf9a53fa17..f215b016507 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/record-header.py
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/resources/record-header.py
@@ -2,6 +2,7 @@ import os
 import uuid
 import hashlib
 import time
+import json
 
 def main(request, response):
   ## Get the query parameter (key) from URL ##
@@ -30,8 +31,14 @@ def main(request, response):
   ## Record incoming Sec-Metadata header value
   else:
     try:
-      ## Return empty string as a default value ##
-      header = request.headers.get("Sec-Metadata", "")
+      ## Return a serialized JSON object with one member per header. If the ##
+      ## header isn't present, the member will contain an empty string.     ##
+      header = json.dumps({
+        "dest": request.headers.get("sec-fetch-dest", ""),
+        "mode": request.headers.get("sec-fetch-mode", ""),
+        "site": request.headers.get("sec-fetch-site", ""),
+        "user": request.headers.get("sec-fetch-user", ""),
+      })
       request.server.stash.put(testId, header)
     except KeyError:
       ## The header is already recorded or it doesn't exist
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/script.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/script.tentative.https.sub.html
index 643e11827f5..d76378f1dd8 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/script.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/script.tentative.https.sub.html
@@ -10,9 +10,9 @@
     t.add_cleanup(_ => { header = null; });
 
     assert_header_equals(header, {
-      "cause": undefined,
-      "destination": "script",
-      "site": "same-origin"
+      "dest": "script",
+      "site": "same-origin",
+      "user":"?F"
     });
   }, "Same-origin script");
 </script>
@@ -24,9 +24,9 @@
     t.add_cleanup(_ => { header = null; });
 
     assert_header_equals(header, {
-      "cause": undefined,
-      "destination": "script",
-      "site": "same-site"
+      "dest": "script",
+      "site": "same-site",
+      "user":"?F"
     });
   }, "Same-site script");
 </script>
@@ -38,9 +38,9 @@
     t.add_cleanup(_ => { header = null; });
 
     assert_header_equals(header, {
-      "cause": undefined,
-      "destination": "script",
-      "site": "cross-site"
+      "dest": "script",
+      "site": "cross-site",
+      "user":"?F"
     });
   }, "Cross-site script");
 </script>
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/serviceworker.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/serviceworker.tentative.https.sub.html
index cefabb20aaa..d0b86d2d9a8 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/serviceworker.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/serviceworker.tentative.https.sub.html
@@ -35,7 +35,7 @@
     promise_test(t => {
     return new Promise((resolve, reject) => {
       let key = "serviceworker-same-origin";
-      let expected = {"destination":"serviceworker", "site":"same-origin"};
+      let expected = {"dest":"serviceworker", "site":"same-origin", "user":"?F"};
       fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
         .then(response => response.text())
         .then(text => assert_header_equals(text, expected))
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/sharedworker.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/sharedworker.tentative.https.sub.html
index 09017ccbb3a..66f7d5b9d8d 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/sharedworker.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/sharedworker.tentative.https.sub.html
@@ -26,7 +26,7 @@
     promise_test(t => {
       return new Promise((resolve, reject) => {
         let key = "sharedworker-same-origin";
-        let expected = {"destination":"sharedworker", "site":"same-origin"};
+        let expected = {"dest":"sharedworker", "site":"same-origin", "user":"?F"};
 
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/style.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/style.tentative.https.sub.html
index 609d5764f08..9697db75c82 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/style.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/style.tentative.https.sub.html
@@ -14,7 +14,7 @@
       e.rel = "stylesheet";
       e.href = "https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
       e.onload = e => {
-        let expected = {"destination":"style", "site":"same-origin"};
+        let expected = {"dest":"style", "site":"same-origin", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
@@ -34,7 +34,7 @@
       e.rel = "stylesheet";
       e.href = "https://{{hosts[][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
       e.onload = e => {
-        let expected = {"destination":"style", "site":"same-site"};
+        let expected = {"dest":"style", "site":"same-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
@@ -54,7 +54,7 @@
       e.rel = "stylesheet";
       e.href = "https://{{hosts[alt][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=" + key;
       e.onload = e => {
-        let expected = {"destination":"style", "site":"cross-site"};
+        let expected = {"dest":"style", "site":"cross-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/track.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/track.tentative.https.sub.html
index e89d4745ff2..b9dfabf9739 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/track.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/track.tentative.https.sub.html
@@ -29,7 +29,7 @@
       let el = createTrack();
       el.src = "https://{{host}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=track-same-origin";
       el.onload = t.step_func(_ => {
-        expected = {"destination":"track", "site":"same-origin"};
+        expected = {"dest":"track", "site":"same-origin", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=track-same-origin")
             .then(response => response.text())
             .then(text => assert_header_equals(text, expected))
@@ -46,7 +46,7 @@
       let el = createTrack();
       el.src = "https://{{hosts[][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=track-same-site";
       el.onload = t.step_func(_ => {
-        expected = {"destination":"track", "site":"same-site"};
+        expected = {"dest":"track", "site":"same-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=track-same-site")
             .then(response => response.text())
             .then(text => assert_header_equals(text, expected))
@@ -65,7 +65,7 @@
       let el = createTrack();
       el.src = "https://{{hosts[alt][www]}}:{{ports[https][0]}}/fetch/sec-metadata/resources/record-header.py?file=track-cross-site";
       el.onload = t.step_func(_ => {
-        expected = {"destination":"track", "site":"cross-site"};
+        expected = {"dest":"track", "site":"cross-site", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=track-cross-site")
             .then(response => response.text())
             .then(text => assert_header_equals(text, expected))
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/window-open.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/window-open.tentative.https.sub.html
index 3cd6190f944..236268e1774 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/window-open.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/window-open.tentative.https.sub.html
@@ -15,9 +15,9 @@
         return;
 
       assert_header_equals(e.data, {
-        "cause": "forced",
-        "destination": "document",
-        "site": "same-origin"
+        "dest": "document",
+        "site": "same-origin",
+        "user":"?F"
       });
       t.done();
     }));
@@ -31,9 +31,9 @@
         return;
 
       assert_header_equals(e.data, {
-        "cause": "forced",
-        "destination": "document",
-        "site": "same-site"
+        "dest": "document",
+        "site": "same-site",
+        "user":"?F"
       });
       t.done();
     }));
@@ -47,9 +47,9 @@
         return;
 
       assert_header_equals(e.data, {
-        "cause": "forced",
-        "destination": "document",
-        "site": "cross-site"
+        "dest": "document",
+        "site": "cross-site",
+        "user":"?F"
       });
       t.done();
     }));
@@ -66,9 +66,9 @@
           return;
 
         assert_header_equals(e.data, {
-          "cause": "user-activated",
-          "destination": "document",
-          "site": "same-origin"
+          "dest": "document",
+          "site": "same-origin",
+          "user": "?T"
         });
         t.done();
       }));
@@ -87,9 +87,9 @@
           return;
 
         assert_header_equals(e.data, {
-          "cause": "user-activated",
-          "destination": "document",
-          "site": "same-site"
+          "dest": "document",
+          "site": "same-site",
+          "user": "?T"
         });
         t.done();
       }));
@@ -108,9 +108,9 @@
           return;
 
         assert_header_equals(e.data, {
-          "cause": "user-activated",
-          "destination": "document",
-          "site": "cross-site"
+          "dest": "document",
+          "site": "cross-site",
+          "user": "?T"
         });
         t.done();
       }));
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/worker.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/worker.tentative.https.sub.html
index eff66fcc781..fcffe91dbf7 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/worker.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/worker.tentative.https.sub.html
@@ -10,7 +10,7 @@
       let key = "worker-same-origin";
       let w = new Worker("/fetch/sec-metadata/resources/record-header.py?file=" + key);
       w.onmessage = e => {
-        let expected = {"destination":"worker", "site":"same-origin"};
+        let expected = {"dest":"worker", "site":"same-origin", "user":"?F"};
         fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=" + key)
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected))
diff --git a/tests/wpt/web-platform-tests/fetch/sec-metadata/xslt.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/sec-metadata/xslt.tentative.https.sub.html
index dff996679ff..32349c9598e 100644
--- a/tests/wpt/web-platform-tests/fetch/sec-metadata/xslt.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/sec-metadata/xslt.tentative.https.sub.html
@@ -12,21 +12,21 @@
       return;
 
     promise_test(t => {
-      let expected = {"destination":"xslt", "site":"same-origin"};
+      let expected = {"dest":"xslt", "site":"same-origin", "user":"?F"};
       return fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=xslt-same-origin")
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected));
     }, "Same-Origin xslt");
 
     promise_test(t => {
-      let expected = {"destination":"xslt", "site":"same-site"};
+      let expected = {"dest":"xslt", "site":"same-site", "user":"?F"};
       return fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=xslt-same-site")
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected));
     }, "Same-site xslt");
 
     promise_test(t => {
-      let expected = {"destination":"xslt", "site":"cross-site"};
+      let expected = {"dest":"xslt", "site":"cross-site", "user":"?F"};
       return fetch("/fetch/sec-metadata/resources/record-header.py?retrieve=true&file=xslt-cross-site")
           .then(response => response.text())
           .then(text => assert_header_equals(text, expected));
diff --git a/tests/wpt/web-platform-tests/interfaces/encoding.idl b/tests/wpt/web-platform-tests/interfaces/encoding.idl
index b805363c534..b3086b8588c 100644
--- a/tests/wpt/web-platform-tests/interfaces/encoding.idl
+++ b/tests/wpt/web-platform-tests/interfaces/encoding.idl
@@ -29,10 +29,16 @@ interface mixin TextEncoderCommon {
   readonly attribute DOMString encoding;
 };
 
+dictionary TextEncoderEncodeIntoResult {
+  unsigned long long read;
+  unsigned long long written;
+};
+
 [Constructor,
  Exposed=(Window,Worker)]
 interface TextEncoder {
   [NewObject] Uint8Array encode(optional USVString input = "");
+  TextEncoderEncodeIntoResult encodeInto(USVString source, Uint8Array destination);
 };
 TextEncoder includes TextEncoderCommon;
 
diff --git a/tests/wpt/web-platform-tests/interfaces/performance-timeline.idl b/tests/wpt/web-platform-tests/interfaces/performance-timeline.idl
index 0cd2830b2ea..7766bfd7b09 100644
--- a/tests/wpt/web-platform-tests/interfaces/performance-timeline.idl
+++ b/tests/wpt/web-platform-tests/interfaces/performance-timeline.idl
@@ -30,8 +30,9 @@ interface PerformanceObserver {
 };
 
 dictionary PerformanceObserverInit {
-  required sequence<DOMString> entryTypes;
-  boolean buffered = false;
+  sequence<DOMString> entryTypes;
+  DOMString type;
+  boolean buffered;
 };
 
 [Exposed=(Window,Worker)]
diff --git a/tests/wpt/web-platform-tests/interfaces/user-timing.idl b/tests/wpt/web-platform-tests/interfaces/user-timing.idl
index 60b22776c9b..723b063156a 100644
--- a/tests/wpt/web-platform-tests/interfaces/user-timing.idl
+++ b/tests/wpt/web-platform-tests/interfaces/user-timing.idl
@@ -1,19 +1,33 @@
 // GENERATED CONTENT - DO NOT EDIT
 // Content was automatically extracted by Reffy into reffy-reports
 // (https://github.com/tidoust/reffy-reports)
-// Source: User Timing Level 2 (https://w3c.github.io/user-timing/)
+// Source: User Timing Level 3 (https://w3c.github.io/user-timing/)
+
+dictionary PerformanceMarkOptions {
+    any detail = null;
+    DOMHighResTimeStamp startTime;
+};
+
+dictionary PerformanceMeasureOptions {
+    any detail = null;
+    (DOMString or DOMHighResTimeStamp) startTime;
+    DOMHighResTimeStamp duration;
+    (DOMString or DOMHighResTimeStamp) endTime;
+};
 
 partial interface Performance {
-    void mark(DOMString markName);
+    PerformanceMark mark(DOMString markName, optional PerformanceMarkOptions markOptions);
     void clearMarks(optional DOMString markName);
-    void measure(DOMString measureName, optional DOMString startMark, optional DOMString endMark);
+    PerformanceMeasure measure(DOMString measureName, optional (DOMString or PerformanceMeasureOptions) startOrMeasureOptions, optional DOMString endMark);
     void clearMeasures(optional DOMString measureName);
 };
 
 [Exposed=(Window,Worker)]
 interface PerformanceMark : PerformanceEntry {
+  readonly attribute any detail;
 };
 
 [Exposed=(Window,Worker)]
 interface PerformanceMeasure : PerformanceEntry {
+  readonly attribute any detail;
 };
diff --git a/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-creation.https.html b/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-creation.https.html
new file mode 100644
index 00000000000..57e636c6984
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-creation.https.html
@@ -0,0 +1,56 @@
+<!doctype html>
+<html>
+<head>
+  <title>MediaRecorder Creation</title>
+  <link rel="help" href="https://w3c.github.io/mediacapture-record/MediaRecorder.html#mediarecorder">
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+</head>
+<script>
+  // This test verifies that MediaRecorder can be created with different Media
+  // Stream Track combinations: 1 Video Track only, 1 Audio Track only and finally
+  // a Media Stream with both a Video and an Audio Track. Note that recording is
+  // _not_ started in this test, see MediaRecorder-audio-video.html for it.
+
+  function makeAsyncTest(constraints, verifyStream, message) {
+    async_test(function(test) {
+
+      const gotStream = test.step_func(function(stream) {
+        verifyStream(stream);
+
+        var recorder = new MediaRecorder(stream);
+        assert_equals(recorder.state, "inactive");
+        assert_equals(recorder.videoBitsPerSecond, 0);
+        assert_equals(recorder.audioBitsPerSecond, 0);
+        test.done();
+      });
+
+      const onError = test.unreached_func('Error creating MediaStream.');
+      navigator.getUserMedia(constraints, gotStream, onError);
+    }, message);
+  }
+
+  function verifyVideoOnlyStream(stream) {
+    assert_equals(stream.getAudioTracks().length, 0);
+    assert_equals(stream.getVideoTracks().length, 1);
+    assert_equals(stream.getVideoTracks()[0].readyState, 'live');
+  }
+  function verifyAudioOnlyStream(stream) {
+    assert_equals(stream.getAudioTracks().length, 1);
+    assert_equals(stream.getVideoTracks().length, 0);
+    assert_equals(stream.getAudioTracks()[0].readyState, 'live');
+  }
+  function verifyAudioVideoStream(stream) {
+    assert_equals(stream.getAudioTracks().length, 1);
+    assert_equals(stream.getVideoTracks().length, 1);
+    assert_equals(stream.getVideoTracks()[0].readyState, 'live');
+    assert_equals(stream.getAudioTracks()[0].readyState, 'live');
+  }
+
+  // Note: webkitGetUserMedia() must be called with at least video or audio true.
+  makeAsyncTest({video:true}, verifyVideoOnlyStream, 'Video-only MediaRecorder');
+  makeAsyncTest({audio:true}, verifyAudioOnlyStream, 'Audio-only MediaRecorder');
+  makeAsyncTest({audio:true, video:true}, verifyAudioVideoStream, 'Video+Audio MediaRecorder');
+
+</script>
+</html>
diff --git a/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-detached-context.html b/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-detached-context.html
new file mode 100644
index 00000000000..f8a8699ad9f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-detached-context.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<html>
+<head>
+  <title>MediaRecorder Detached Context</title>
+  <link rel="help" href="https://w3c.github.io/mediacapture-record/MediaRecorder.html#mediarecorder">
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<script>
+  async_test(t => {
+    const frame = document.body.appendChild(document.createElement('iframe'));
+    const recorderFunc = frame.contentWindow.MediaRecorder;
+    frame.remove();
+
+    try {
+      new recorderFunc(new MediaStream);
+    } catch (err) {
+      assert_equals(err.name, 'NotAllowedError');
+      t.done();
+    }
+    assert_unreached('MediaRecorder should have failed');
+  }, 'MediaRecorder creation with detached context');
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-error.html b/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-error.html
index 2459449acf9..7852ee3a7c1 100644
--- a/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-error.html
+++ b/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-error.html
@@ -24,6 +24,14 @@
         return canvas.captureStream();
     }
 
+    function drawSomethingOnCanvas() {
+        let canvas = document.getElementById("canvas");
+        // Drawing something on the canvas generates a frame in its captured stream.
+        let context = canvas.getContext("2d");
+        context.fillStyle = "red";
+        context.fillRect(0, 0, 10, 10);
+    }
+
     async_test(t => {
         let video = createVideoStream();
         let audio = createAudioStream();
@@ -38,6 +46,7 @@
         recorder.start();
         assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully");
         video.addTrack(audio.getAudioTracks()[0]);
+        drawSomethingOnCanvas();
         t.step_timeout(() => {
             assert_unreached("error event is not fired after 2 seconds");
         }, 2000);
@@ -56,6 +65,7 @@
         recorder.start();
         assert_equals(recorder.state, "recording", "MediaRecorder has been started successfully");
         video.removeTrack(video.getVideoTracks()[0]);
+        drawSomethingOnCanvas();
         t.step_timeout(() => {
             assert_unreached("error event is not fired after 2 seconds");
         }, 2000);
diff --git a/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-events-and-exceptions.html b/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-events-and-exceptions.html
new file mode 100644
index 00000000000..58b9c08ecab
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mediacapture-record/MediaRecorder-events-and-exceptions.html
@@ -0,0 +1,116 @@
+<!doctype html>
+<html>
+<head>
+    <title>MediaRecorder events and exceptions</title>
+    <link rel="help" href="https://w3c.github.io/mediacapture-record/MediaRecorder.html#mediarecorder">
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<canvas id="canvas" width="320" height="320"></canvas>
+<script>
+
+  // This test exercises the MediaRecorder API event sequence:
+  //   onStart -> onPause -> onResume -> onDataAvailable -> onStop
+  // verifying the |state| and a few exceptions that are supposed to be thrown
+  // when doing the wrong thing.
+
+  function createVideoStream() {
+      let canvas = document.getElementById("canvas");
+      canvas.getContext('2d').lineTo(10, 10);
+      return canvas.captureStream();
+  }
+
+  function drawSomethingOnCanvas() {
+      let canvas = document.getElementById("canvas");
+      // Drawing something on the canvas generates a frame in its captured stream.
+      let context = canvas.getContext("2d");
+      context.fillStyle = "red";
+      context.fillRect(0, 0, 10, 10);
+  }
+
+  async_test(test => {
+
+    recorderOnUnexpectedEvent = test.step_func(() => {
+      assert_unreached('Unexpected event.');
+    });
+
+    recorderOnDataAvailable = test.step_func(event => {
+      // TODO(mcasas): ondataavailable might never be pinged with an empty Blob
+      // data on recorder.stop(), see http://crbug.com/54428
+      assert_equals(recorder.state, "inactive");
+      assert_equals(event.data.size, 0, 'We should have gotten an empty Blob');
+    });
+
+    recorderOnStop = test.step_func(function() {
+      assert_equals(recorder.state, "inactive");
+      assert_throws("InvalidStateError", function() { recorder.stop() },
+                    "recorder cannot be stop()ped in |inactive| state");
+      assert_throws("InvalidStateError", function() { recorder.pause() },
+                    "recorder cannot be pause()ed in |inactive| state");
+      assert_throws("InvalidStateError", function() { recorder.resume() },
+                    "recorder cannot be resume()d in |inactive| state");
+      assert_throws("InvalidStateError", function() { recorder.requestData() },
+                    "cannot requestData() if recorder is in |inactive| state");
+      recorder.onstop = recorderOnUnexpectedEvent;
+      test.done();
+    });
+
+    recorderOnResume = test.step_func(function() {
+      assert_equals(recorder.state, "recording");
+      recorder.onresume = recorderOnUnexpectedEvent;
+      recorder.onstop = recorderOnStop;
+      recorder.stop();
+    });
+
+    recorderOnPause = test.step_func(function() {
+      assert_equals(recorder.state, "paused");
+      recorder.onpause = recorderOnUnexpectedEvent;
+      recorder.onresume = recorderOnResume;
+      recorder.resume();
+    });
+
+    recorderOnStart = test.step_func(function() {
+      assert_equals(recorder.state, "recording");
+      recorder.onstart = recorderOnUnexpectedEvent;
+      recorder.onpause = recorderOnPause;
+      recorder.pause();
+    });
+
+    let stream = createVideoStream();
+    assert_equals(stream.getAudioTracks().length, 0);
+    assert_equals(stream.getVideoTracks().length, 1);
+    assert_equals(stream.getVideoTracks()[0].readyState, 'live');
+
+    assert_throws("NotSupportedError",
+                  function() {
+                    recorder =
+                        new MediaRecorder(stream, {mimeType : "video/invalid"});
+                  },
+                  "recorder should throw() with unsupported mimeType");
+    let recorder = new MediaRecorder(stream);
+    assert_equals(recorder.state, "inactive");
+
+    assert_throws("InvalidStateError", function(){recorder.stop()},
+                  "recorder cannot be stop()ped in |inactive| state");
+    assert_throws("InvalidStateError", function(){recorder.pause()},
+                  "recorder cannot be pause()ed in |inactive| state");
+    assert_throws("InvalidStateError", function(){recorder.resume()},
+                  "recorder cannot be resume()d in |inactive| state");
+    assert_throws("InvalidStateError", function(){recorder.requestData()},
+                  "cannot requestData() if recorder is in |inactive| state");
+
+    drawSomethingOnCanvas();
+
+    recorder.onstop = recorderOnUnexpectedEvent;
+    recorder.onpause = recorderOnUnexpectedEvent;
+    recorder.onresume = recorderOnUnexpectedEvent;
+    recorder.onerror = recorderOnUnexpectedEvent;
+    recorder.ondataavailable = recorderOnDataAvailable;
+    recorder.onstart = recorderOnStart;
+
+    recorder.start();
+    assert_equals(recorder.state, "recording");
+  });
+
+</script>
diff --git a/tests/wpt/web-platform-tests/payment-request/META.yml b/tests/wpt/web-platform-tests/payment-request/META.yml
index 16738814437..227ca551dc2 100644
--- a/tests/wpt/web-platform-tests/payment-request/META.yml
+++ b/tests/wpt/web-platform-tests/payment-request/META.yml
@@ -4,7 +4,6 @@ suggested_reviewers:
   - rsolomakhin
   - domenic
   - zouhir
-  - mnoorenberghe
   - romandev
   - edenchuang
   - aestes
diff --git a/tests/wpt/web-platform-tests/portals/portal-activate-event.html b/tests/wpt/web-platform-tests/portals/portal-activate-event.html
new file mode 100644
index 00000000000..ed5602667bb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/portals/portal-activate-event.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<title>Tests that the PortalActivateEvent is dispatched when a portal is activated</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+  async_test(function(t) {
+    var bc = new BroadcastChannel("test");
+    bc.onmessage = t.step_func_done(function(e) {
+      assert_equals(e.data, "passed");
+      bc.close();
+    });
+    window.open("resources/portal-activate-event-window.html");
+  }, "Tests that the PortalActivateEvent is dispatched when a portal is activated.");
+</script>
diff --git a/tests/wpt/web-platform-tests/portals/resources/portal-activate-event-portal.html b/tests/wpt/web-platform-tests/portals/resources/portal-activate-event-portal.html
new file mode 100644
index 00000000000..d0eebcd12e6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/portals/resources/portal-activate-event-portal.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<title>Tests that the PortalActivateEvent is dispatched when a portal is activated</title>
+<script>
+  window.addEventListener("portalactivate", function(e) {
+    var bc = new BroadcastChannel("test");
+    bc.postMessage("passed");
+    bc.close();
+  });
+
+  var bc = new BroadcastChannel("portal");
+  bc.postMessage("loaded");
+  bc.close();
+</script>
diff --git a/tests/wpt/web-platform-tests/portals/resources/portal-activate-event-window.html b/tests/wpt/web-platform-tests/portals/resources/portal-activate-event-window.html
new file mode 100644
index 00000000000..1994dc3fad1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/portals/resources/portal-activate-event-window.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<script>
+  var bc = new BroadcastChannel("portal");
+  bc.onmessage = function(e) {
+    document.querySelector("portal").activate();
+    bc.close();
+  }
+</script>
+<body>
+  <portal src="portal-activate-event-portal.html"></portal>
+</body>
diff --git a/tests/wpt/web-platform-tests/resource-timing/no-entries-for-cross-origin-css-fetched.sub.html b/tests/wpt/web-platform-tests/resource-timing/no-entries-for-cross-origin-css-fetched.sub.html
index 92d94a17ec0..63f9e06e190 100644
--- a/tests/wpt/web-platform-tests/resource-timing/no-entries-for-cross-origin-css-fetched.sub.html
+++ b/tests/wpt/web-platform-tests/resource-timing/no-entries-for-cross-origin-css-fetched.sub.html
@@ -3,9 +3,23 @@
 <title>Make sure that resources fetched by cross origin CSS are not in the timeline.</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
 <body>
-<!-- The stylesheet is fetched from http://www1.web–platform.test:64941/resource-timing/resources/nested.css -->
-<link rel=stylesheet id=cross_origin_style href="//{{domains[www1]}}:{{ports[http][1]}}{{location[path]}}/../resources/nested.css">
+<script>
+    const host = get_host_info();
+
+    const link = document.createElement("LINK");
+    link.rel = "stylesheet";
+    link.id = "cross_origin_style";
+
+    /*
+        This stylesheet is fetched from one of:
+            //www1.web–platform.test:64941/resource-timing/resources/nested.css
+            //127.0.0.1:64941/resource-timing/resources/nested.css
+     */
+    link.href = "//" + host.REMOTE_HOST + ":{{ports[http][1]}}{{location[path]}}/../resources/nested.css"
+    document.currentScript.parentNode.insertBefore(link, document.currentScript);
+</script>
 <script>
   const t = async_test("Make sure that resources fetched by cross origin CSS are not in the timeline.");
   window.addEventListener("load", function() {
@@ -17,7 +31,7 @@
           assert_equals(performance.getEntriesByName(prefix + "/fonts/Ahem.ttf?id=n1").length, 0, "Font should not be in timeline");
           assert_equals(performance.getEntriesByName(prefix + "/resource-timing/resources/blue.png?id=n1").length, 0, "Image should not be in timeline");
           t.done();
-    },100);
+    }, 200);
   });
 </script>
 <ol>Some content</ol>
diff --git a/tests/wpt/web-platform-tests/resource-timing/resource_connection_reuse.html b/tests/wpt/web-platform-tests/resource-timing/resource_connection_reuse.html
index 74c7c10821e..7a31a7e1ab3 100644
--- a/tests/wpt/web-platform-tests/resource-timing/resource_connection_reuse.html
+++ b/tests/wpt/web-platform-tests/resource-timing/resource_connection_reuse.html
@@ -21,7 +21,6 @@ test_namespace('getEntriesByType');
 function setup_iframe() {
     iframe = document.getElementById('frameContext');
     d = iframe.contentWindow.document;
-    iframeBody = d.body;
     iframe.addEventListener('load', onload_test, false);
 }
 
@@ -41,10 +40,11 @@ function onload_test() {
         const entry = entries[1];
         test_equals(entry.fetchStart, entry.connectStart, 'connectStart and fetchStart should be the same');
         test_equals(entry.fetchStart, entry.connectEnd, 'connectEnd and fetchStart should be the same');
-        test_equals(entry.fetchStart, entry.secureConnectionStart, 'secureConnectStart and fetchStart should be the same');
+        if(!window.isSecureConnection) {
+            test_equals(entry.secureConnectionStart, 0, 'secureConnectStart should be zero');
+        }
         test_equals(entry.fetchStart, entry.domainLookupStart, 'domainLookupStart and fetchStart should be the same')
         test_equals(entry.fetchStart, entry.domainLookupEnd, 'domainLookupEnd and fetchStart should be the same')
-
     }
 
     done();
diff --git a/tests/wpt/web-platform-tests/resource-timing/resource_connection_reuse.https.html b/tests/wpt/web-platform-tests/resource-timing/resource_connection_reuse.https.html
new file mode 100644
index 00000000000..bc79a8519b2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/resource-timing/resource_connection_reuse.https.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8" />
+<title>Resource Timing connection reuse</title>
+<link rel="author" title="Google" href="http://www.google.com/" />
+<link rel="help" href="https://www.w3.org/TR/resource-timing/#dom-performanceresourcetiming-initiatortype"/>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/webperftestharness.js"></script>
+<script src="resources/webperftestharnessextension.js"></script>
+<script>
+setup({explicit_done: true});
+let iframe;
+let d;
+let body;
+
+// Explicitly test the namespace before we start testing.
+test_namespace('getEntriesByType');
+
+function setup_iframe() {
+    iframe = document.getElementById('frameContext');
+    d = iframe.contentWindow.document;
+    iframe.addEventListener('load', onload_test, false);
+}
+
+function onload_test() {
+    if (window.performance.getEntriesByType === undefined) {
+      done();
+      return;
+    }
+    const context = new PerformanceContext(iframe.contentWindow.performance);
+    const entries = context.getEntriesByType('resource');
+
+    // When a persistent connection is used, follow-on resources should be included as PerformanceResourceTiming objects.
+    test_equals(entries.length, 2, 'There should be 2 PerformanceEntries');
+
+    if (entries.length >= 2) {
+        // When a persistent connection is used, for the resource that reuses the socket, connectStart and connectEnd should have the same value as fetchStart.
+        const entry = entries[1];
+        test_equals(entry.fetchStart, entry.connectStart, 'connectStart and fetchStart should be the same');
+        test_equals(entry.fetchStart, entry.connectEnd, 'connectEnd and fetchStart should be the same');
+        test_equals(entry.fetchStart, entry.secureConnectionStart, 'secureConnectStart and fetchStart should be the same');
+        test_equals(entry.fetchStart, entry.domainLookupStart, 'domainLookupStart and fetchStart should be the same')
+        test_equals(entry.fetchStart, entry.domainLookupEnd, 'domainLookupEnd and fetchStart should be the same')
+    }
+
+    done();
+}
+
+window.setup_iframe = setup_iframe;
+</script>
+</head>
+<body>
+<h1>Description</h1>
+<p>This test validates that connectStart and connectEnd are the same when a connection is reused (e.g. when a persistent connection is used).</p>
+<div id="log"></div>
+<iframe id="frameContext" src="resources/fake_responses.html"></iframe>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/resource-timing/resource_memory_cached.sub.html b/tests/wpt/web-platform-tests/resource-timing/resource_memory_cached.sub.html
index 236f69fba72..89b5874978c 100644
--- a/tests/wpt/web-platform-tests/resource-timing/resource_memory_cached.sub.html
+++ b/tests/wpt/web-platform-tests/resource-timing/resource_memory_cached.sub.html
@@ -9,24 +9,26 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="resources/webperftestharness.js"></script>
 <script src="resources/webperftestharnessextension.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
 <script>
 setup({explicit_done: true});
 let d;
 let iframe;
 let iframeBody;
 let count = 0;
+const host = get_host_info();
 function onload_prep() {
     iframe = document.getElementById('frameContext');
     d = iframe.contentWindow.document;
     iframeBody = d.body;
 
-    const image = d.createElement('img');
+    const image = d.createElement('IMG');
     image.addEventListener('load', function() {
         step_timeout(onload_test, 0); });
     image.src = 'blue.png?id=cached';
     iframeBody.appendChild(image);
 
-    const image2 = d.createElement('img');
+    const image2 = d.createElement('IMG');
     image2.addEventListener('load', function() {
         step_timeout(onload_test, 0); });
     image2.src = 'blue.png?id=cached';
@@ -55,16 +57,16 @@ function onload_test() {
     start_crossorigin_test();
 }
 function start_crossorigin_test() {
-    const image3 = d.createElement('img');
+    const image3 = d.createElement('IMG');
     image3.addEventListener("load", function() { step_timeout(finish_crossorigin_test, 0); });
-    image3.src = 'http://{{domains[www1]}}:{{ports[http][1]}}{{location[path]}}/../resources/blue.png?id=cached';
+    image3.src = 'http://' + host.REMOTE_HOST + ':{{ports[http][1]}}{{location[path]}}/../resources/blue.png?id=cached';
     iframeBody.appendChild(image3);
 }
 function finish_crossorigin_test() {
     const context = new PerformanceContext(iframe.contentWindow.performance);
     const entries = context.getEntriesByType('resource');
     test_equals(entries.length, 1, 'There should be one entry in second test');
-    test_true(entries[0].name.startsWith('http://{{domains[www1]}}:{{ports[http][1]}}'), 'Entry name should start with cross-origin domain');
+    test_true(entries[0].name.startsWith('http://' + host.REMOTE_HOST + ':{{ports[http][1]}}'), 'Entry name should start with cross-origin domain');
     test_true(entries[0].name.endsWith('/resources/blue.png?id=cached'), 'Entry name should end with file name');
     test_equals(entries[0].requestStart, 0, 'requestStart should be 0 on the cross-origin request');
     done();
@@ -79,6 +81,10 @@ window.addEventListener('load', onload_prep);
 <div id="log"></div>
 <iframe id="frameContext" src="resources/inject_resource_test.html"></iframe>
 <img src="resources/blue.png?id=cached"></img>
-<img src="http://{{domains[www1]}}:{{ports[http][1]}}{{location[path]}}/../resources/blue.png?id=cached"></img>
+<script>
+    const img = document.createElement('IMG');
+    img.src = "http://" + host.REMOTE_HOST + ":{{ports[http][1]}}{{location[path]}}/../resources/blue.png?id=cached";
+    document.currentScript.parentNode.insertBefore(img, document.currentScript);
+</script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/signed-exchange/check-cert-request.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/check-cert-request.tentative.html
index 5a89066c012..b1418e92908 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/check-cert-request.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/check-cert-request.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/check-cert-request.sxg';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/check-cert-request.sxg';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html');
   assert_false(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/fallback-to-another-sxg.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/fallback-to-another-sxg.tentative.html
index 0dbbd4a84b2..8ccba86bd79 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/fallback-to-another-sxg.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/fallback-to-another-sxg.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/fallback-to-another-sxg.sxg';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/fallback-to-another-sxg.sxg';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html');
   assert_false(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/nested-sxg.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/nested-sxg.tentative.html
index b661a0280f2..f1167f919ab 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/nested-sxg.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/nested-sxg.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/nested-sxg.sxg';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/nested-sxg.sxg';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html?fallback-from-nested-sxg');
   assert_true(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/fallback-to-another-sxg.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/fallback-to-another-sxg.sxg
deleted file mode 100644
index 0a601820cf8..00000000000
Binary files a/tests/wpt/web-platform-tests/signed-exchange/resources/fallback-to-another-sxg.sxg and /dev/null differ
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/fallback-to-another-sxg.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/fallback-to-another-sxg.sxg.headers
deleted file mode 100644
index ca41178420c..00000000000
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/fallback-to-another-sxg.sxg.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: application/signed-exchange;v=b2
-X-Content-Type-Options: nosniff
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/generate-test-sxgs.sh b/tests/wpt/web-platform-tests/signed-exchange/resources/generate-test-sxgs.sh
index 8359a137b8f..c208e73a558 100755
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/generate-test-sxgs.sh
+++ b/tests/wpt/web-platform-tests/signed-exchange/resources/generate-test-sxgs.sh
@@ -35,7 +35,7 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o sxg-location.sxg \
+  -o sxg/sxg-location.sxg \
   -miRecordSize 100
 
 # For check-cert-request.tentative.html
@@ -50,7 +50,7 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o check-cert-request.sxg \
+  -o sxg/check-cert-request.sxg \
   -miRecordSize 100
 
 # Request method is HEAD.
@@ -66,7 +66,7 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o sxg-head-request.sxg \
+  -o sxg/sxg-head-request.sxg \
   -miRecordSize 100
 
 # validityUrl is different origin from request URL.
@@ -81,13 +81,13 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o sxg-invalid-validity-url.sxg \
+  -o sxg/sxg-invalid-validity-url.sxg \
   -miRecordSize 100
 
 # certUrl is 404 and fallback URL is another signed exchange.
 gen-signedexchange \
   -version 1b2 \
-  -uri $inner_url_origin/signed-exchange/resources/sxg-location.sxg \
+  -uri $inner_url_origin/signed-exchange/resources/sxg/sxg-location.sxg \
   -status 200 \
   -content failure.html \
   -certificate $certfile \
@@ -96,7 +96,7 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o fallback-to-another-sxg.sxg \
+  -o sxg/fallback-to-another-sxg.sxg \
   -miRecordSize 100
 
 # Nested signed exchange.
@@ -104,7 +104,7 @@ gen-signedexchange \
   -version 1b2 \
   -uri "$inner_url_origin/signed-exchange/resources/inner-url.html?fallback-from-nested-sxg" \
   -status 200 \
-  -content sxg-location.sxg \
+  -content sxg/sxg-location.sxg \
   -responseHeader "$sxg_content_type" \
   -certificate $certfile \
   -certUrl $cert_url_origin/signed-exchange/resources/$certfile.cbor \
@@ -112,7 +112,7 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o nested-sxg.sxg \
+  -o sxg/nested-sxg.sxg \
   -miRecordSize 100
 
 # Fallback URL has non-ASCII UTF-8 characters.
@@ -128,7 +128,7 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o sxg-utf8-inner-url.sxg \
+  -o sxg/sxg-utf8-inner-url.sxg \
   -miRecordSize 100
 
 # Fallback URL has invalid UTF-8 sequence.
@@ -144,7 +144,7 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o sxg-invalid-utf8-inner-url.sxg \
+  -o sxg/sxg-invalid-utf8-inner-url.sxg \
   -miRecordSize 100
 
 # Fallback URL has UTF-8 BOM.
@@ -160,7 +160,7 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o sxg-inner-url-bom.sxg \
+  -o sxg/sxg-inner-url-bom.sxg \
   -miRecordSize 100
 
 # Response has Cache-Control: no-store header.
@@ -176,7 +176,7 @@ gen-signedexchange \
   -privateKey $keyfile \
   -date 2018-04-01T00:00:00Z \
   -expire 168h \
-  -o sxg-noncacheable.sxg \
+  -o sxg/sxg-noncacheable.sxg \
   -miRecordSize 100
 
 rm -fr $tmpdir
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/nested-sxg.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/nested-sxg.sxg.headers
deleted file mode 100644
index ca41178420c..00000000000
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/nested-sxg.sxg.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: application/signed-exchange;v=b2
-X-Content-Type-Options: nosniff
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-head-request.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-head-request.sxg.headers
deleted file mode 100644
index ca41178420c..00000000000
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-head-request.sxg.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: application/signed-exchange;v=b2
-X-Content-Type-Options: nosniff
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-inner-url-bom.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-inner-url-bom.sxg.headers
deleted file mode 100644
index ca41178420c..00000000000
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-inner-url-bom.sxg.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: application/signed-exchange;v=b2
-X-Content-Type-Options: nosniff
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-utf8-inner-url.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-utf8-inner-url.sxg.headers
deleted file mode 100644
index ca41178420c..00000000000
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-utf8-inner-url.sxg.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: application/signed-exchange;v=b2
-X-Content-Type-Options: nosniff
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-validity-url.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-validity-url.sxg.headers
deleted file mode 100644
index ca41178420c..00000000000
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-validity-url.sxg.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: application/signed-exchange;v=b2
-X-Content-Type-Options: nosniff
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-location.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-location.sxg.headers
deleted file mode 100644
index ca41178420c..00000000000
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-location.sxg.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: application/signed-exchange;v=b2
-X-Content-Type-Options: nosniff
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-noncacheable.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-noncacheable.sxg.headers
deleted file mode 100644
index ca41178420c..00000000000
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-noncacheable.sxg.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: application/signed-exchange;v=b2
-X-Content-Type-Options: nosniff
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-utf8-inner-url.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-utf8-inner-url.sxg.headers
deleted file mode 100644
index ca41178420c..00000000000
--- a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-utf8-inner-url.sxg.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: application/signed-exchange;v=b2
-X-Content-Type-Options: nosniff
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/check-cert-request.sxg.headers b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/__dir__.headers
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/check-cert-request.sxg.headers
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/__dir__.headers
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/check-cert-request.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/check-cert-request.sxg
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/check-cert-request.sxg
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/check-cert-request.sxg
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/fallback-to-another-sxg.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/fallback-to-another-sxg.sxg
new file mode 100644
index 00000000000..1af86c04134
Binary files /dev/null and b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/fallback-to-another-sxg.sxg differ
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/nested-sxg.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/nested-sxg.sxg
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/nested-sxg.sxg
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/nested-sxg.sxg
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-head-request.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-head-request.sxg
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/sxg-head-request.sxg
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-head-request.sxg
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-inner-url-bom.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-inner-url-bom.sxg
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/sxg-inner-url-bom.sxg
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-inner-url-bom.sxg
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-utf8-inner-url.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-invalid-utf8-inner-url.sxg
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-utf8-inner-url.sxg
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-invalid-utf8-inner-url.sxg
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-validity-url.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-invalid-validity-url.sxg
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/sxg-invalid-validity-url.sxg
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-invalid-validity-url.sxg
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-location.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-location.sxg
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/sxg-location.sxg
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-location.sxg
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-noncacheable.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-noncacheable.sxg
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/sxg-noncacheable.sxg
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-noncacheable.sxg
diff --git a/tests/wpt/web-platform-tests/signed-exchange/resources/sxg-utf8-inner-url.sxg b/tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-utf8-inner-url.sxg
similarity index 100%
rename from tests/wpt/web-platform-tests/signed-exchange/resources/sxg-utf8-inner-url.sxg
rename to tests/wpt/web-platform-tests/signed-exchange/resources/sxg/sxg-utf8-inner-url.sxg
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-double-prefetch.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-double-prefetch.tentative.html
index a73c18dddf2..d682741744f 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-double-prefetch.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-double-prefetch.tentative.html
@@ -14,9 +14,9 @@ function addPrefetch(url) {
 }
 promise_test(async (t) => {
   const sxg1_url =
-      get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-location.sxg?1';
+      get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-location.sxg?1';
   const sxg2_url =
-      get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-location.sxg?2';
+      get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-location.sxg?2';
   addPrefetch(sxg1_url);
   addPrefetch(sxg2_url);
   await new Promise(resolve => {
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-fallback-with-fragment.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-fallback-with-fragment.tentative.html
index 6d9c9c55232..aae8fa8bd19 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-fallback-with-fragment.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-fallback-with-fragment.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-invalid-validity-url.sxg#fragment';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-invalid-validity-url.sxg#fragment';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html#fragment');
   assert_true(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-head-request.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-head-request.tentative.html
index 83b427b6cf1..ad65a5892d8 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-head-request.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-head-request.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-head-request.sxg';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-head-request.sxg';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html');
   assert_true(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-inner-url-bom.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-inner-url-bom.tentative.html
index c694a2236ff..7055f5fabec 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-inner-url-bom.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-inner-url-bom.tentative.html
@@ -8,7 +8,7 @@
 <script>
 promise_test(async (t) => {
   try {
-    const sxgUrl = get_host_info().HTTP_ORIGIN + '/signed-exchange/resources/sxg-inner-url-bom.sxg';
+    const sxgUrl = get_host_info().HTTP_ORIGIN + '/signed-exchange/resources/sxg/sxg-inner-url-bom.sxg';
     const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
     if (message.is_fallback) {
         assert_unreached('Fallback redirect should not have happened');
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-invalid-utf8-inner-url.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-invalid-utf8-inner-url.tentative.html
index bc28d8101cc..a70bba2fdc1 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-invalid-utf8-inner-url.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-invalid-utf8-inner-url.tentative.html
@@ -8,7 +8,7 @@
 <script>
 promise_test(async (t) => {
   try {
-    const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-invalid-utf8-inner-url.sxg';
+    const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-invalid-utf8-inner-url.sxg';
     const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
     if (message.is_fallback) {
         assert_unreached('Fallback redirect should not have happened');
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-invalid-validity-url.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-invalid-validity-url.tentative.html
index 7264e48b8b7..bb027b16698 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-invalid-validity-url.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-invalid-validity-url.tentative.html
@@ -8,7 +8,7 @@ request URL must fail</title>
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-invalid-validity-url.sxg';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-invalid-validity-url.sxg';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html');
   assert_true(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-location-fragment.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-location-fragment.tentative.html
index 9bfac8a15cd..92e1efbc20c 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-location-fragment.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-location-fragment.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-location.sxg#fragment';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-location.sxg#fragment';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html#fragment');
   assert_false(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-location.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-location.tentative.html
index 0d54ea560f4..17ca0768d6f 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-location.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-location.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-location.sxg';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-location.sxg';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html');
   assert_false(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-non-secure-origin.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-non-secure-origin.tentative.html
index 50a9ce30d80..84938da76d0 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-non-secure-origin.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-non-secure-origin.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTP_ORIGIN + '/signed-exchange/resources/sxg-location.sxg';
+  const sxgUrl = get_host_info().HTTP_ORIGIN + '/signed-exchange/resources/sxg/sxg-location.sxg';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html');
   assert_true(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-noncacheable.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-noncacheable.tentative.html
index 82c9fb0d029..13153607457 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-noncacheable.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-noncacheable.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-noncacheable.sxg';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-noncacheable.sxg';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, innerURLOrigin() + '/signed-exchange/resources/inner-url.html');
   assert_true(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-prefetch-resource-timing.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-prefetch-resource-timing.tentative.html
index f0dc477e730..5b60ab9e1a1 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-prefetch-resource-timing.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-prefetch-resource-timing.tentative.html
@@ -29,7 +29,7 @@ async function waitForPerformanceEntries(url) {
 }
 
 promise_test(async (t) => {
-  const url = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-location.sxg';
+  const url = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-location.sxg';
   addPrefetch(url);
   return waitForPerformanceEntries(url).then((entries) => {
     assert_equals(entries.length, 1, "Should have only one resource timing entry");
diff --git a/tests/wpt/web-platform-tests/signed-exchange/sxg-utf8-inner-url.tentative.html b/tests/wpt/web-platform-tests/signed-exchange/sxg-utf8-inner-url.tentative.html
index fc33560d296..85670a786af 100644
--- a/tests/wpt/web-platform-tests/signed-exchange/sxg-utf8-inner-url.tentative.html
+++ b/tests/wpt/web-platform-tests/signed-exchange/sxg-utf8-inner-url.tentative.html
@@ -7,7 +7,7 @@
 <body>
 <script>
 promise_test(async (t) => {
-  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg-utf8-inner-url.sxg';
+  const sxgUrl = get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-utf8-inner-url.sxg';
   const message = await openSXGInIframeAndWaitForMessage(t, sxgUrl);
   assert_equals(message.location, new URL(innerURLOrigin() + '/signed-exchange/resources/\uD83C\uDF10\uD83D\uDCE6.html').href);
   assert_false(message.is_fallback);
diff --git a/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicy-createXXX.tentative.html b/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicy-createXXX.tentative.html
index 475a2647904..6a0151ad9bc 100644
--- a/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicy-createXXX.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicy-createXXX.tentative.html
@@ -36,7 +36,7 @@
     assert_equals(el.title, INPUTS.URL);
 
     el.title = policy.createURL(INPUTS.HTML);
-    assert_equals(el.title, INPUTS.HTML);
+    assert_equals(el.title, "");
   }, "Attributes without type constraints will work as before.");
 
   test(t => {
@@ -71,14 +71,14 @@
 
   const urlTestCases = [
     [ s => s, INPUTS.SCRIPTURL ],
-    [ s => null, "null" ],
+    [ s => null, "" ],
     [ s => s + "#duck", INPUTS.SCRIPTURL + "#duck" ],
     [ s => { throw new Error() }, new Error() ],
     [ s => s + "#" + aGlobalVarForSideEffectTesting,
       INPUTS.SCRIPTURL + "#global" ],
     [ anotherGlobalFunction.bind(aGlobalObject), INPUTS.SCRIPTURL + "#well," ],
     [ s => anotherGlobalFunction(s),
-      INPUTS.SCRIPTURL + "#a global var named foo" ],
+      INPUTS.SCRIPTURL + "#a%20global%20var%20named%20foo" ],
   ];
 
   function policyBuilder(trustedMethodName, trustedType, defaultArg) {
diff --git a/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicyFactory-createPolicy-createXYZTests.tentative.html b/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicyFactory-createPolicy-createXYZTests.tentative.html
index 37e245ee27a..a162d84cd82 100644
--- a/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicyFactory-createPolicy-createXYZTests.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/TrustedTypePolicyFactory-createPolicy-createXYZTests.tentative.html
@@ -165,7 +165,7 @@
   }, "script_url = identity function");
 
   test(t => {
-    createScriptURLTest('TestPolicyScriptURL2', { createScriptURL: s => null }, "null", t);
+    createScriptURLTest('TestPolicyScriptURL2', { createScriptURL: s => null }, "", t);
   }, "script_url = null");
 
   var scriptURLstr = '#duck';
@@ -240,7 +240,7 @@
   }, "url = identity function");
 
   test(t => {
-    createURLTest('TestPolicyURL2', { createURL: s => null }, "null", t);
+    createURLTest('TestPolicyURL2', { createURL: s => null }, "", t);
   }, "url = null");
 
   var URLstr = '#x';
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html
index c243757887a..f9cbdc5a889 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute.tentative.html
@@ -9,14 +9,19 @@
 </head>
 <body>
 <script>
+  const nullPolicy = TrustedTypes.createPolicy('NullPolicy', {createScript: s => s});
+
   // TrustedURL Assignments
   const URLTestCases = [
     [ 'a', 'href' ],
     [ 'area', 'href' ],
     [ 'base', 'href' ],
+    [ 'button', 'formAction' ],
+    [ 'form', 'action' ],
     [ 'frame', 'src' ],
     [ 'iframe', 'src' ],
     [ 'img', 'src' ],
+    [ 'input', 'formAction' ],
     [ 'input', 'src' ],
     [ 'link', 'href' ],
     [ 'video', 'src' ],
@@ -29,6 +34,7 @@
       assert_element_accepts_trusted_url_explicit_set(window, c, t, c[0], c[1], RESULTS.URL);
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], 'A string');
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], null);
+      assert_throws_no_trusted_type_explicit_set(c[0], c[1], nullPolicy.createScript('script'));
     }, c[0] + "." + c[1] + " accepts only TrustedURL");
   });
 
@@ -45,6 +51,7 @@
       assert_element_accepts_trusted_script_url_explicit_set(window, c, t, c[0], c[1], RESULTS.SCRIPTURL);
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], 'A string');
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], null);
+      assert_throws_no_trusted_type_explicit_set(c[0], c[1], nullPolicy.createScript('script'));
     }, c[0] + "." + c[1] + " accepts only TrustedScriptURL");
   });
 
@@ -58,22 +65,52 @@
       assert_element_accepts_trusted_html_explicit_set(window, c, t, c[0], c[1], RESULTS.HTML);
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], 'A string');
       assert_throws_no_trusted_type_explicit_set(c[0], c[1], null);
+      assert_throws_no_trusted_type_explicit_set(c[0], c[1], nullPolicy.createScript('script'));
     }, c[0] + "." + c[1] + " accepts only TrustedHTML");
   });
 
+  // TrustedScript Assignments
+  const ScriptTestCases = [
+    [ 'div', 'onclick' ]
+  ];
+
+  ScriptTestCases.forEach(c => {
+    test(t => {
+      assert_element_accepts_trusted_script_explicit_set(window, c, t, c[0], c[1], RESULTS.SCRIPT);
+      assert_throws_no_trusted_type_explicit_set(c[0], c[1], 'A string');
+      assert_throws_no_trusted_type_explicit_set(c[0], c[1], null);
+    }, c[0] + "." + c[1] + " accepts only TrustedScript");
+  });
+
+  test(t => {
+    let el = document.createElement('iframe');
+
+    assert_throws(new TypeError(), _ => {
+      el.setAttribute('SrC', INPUTS.URL);
+    });
+
+    assert_equals(el.src, '');
+  }, "`Element.prototype.setAttribute.SrC = string` throws.");
+
   // After default policy creation string and null assignments implicitly call createXYZ
-  let p = window.TrustedTypes.createPolicy("default", { createURL: createURLJS, createScriptURL: createScriptURLJS, createHTML: createHTMLJS }, true);
+  let p = window.TrustedTypes.createPolicy("default", { createURL: createURLJS, createScriptURL: createScriptURLJS, createHTML: createHTMLJS, createScript: createScriptJS }, true);
   URLTestCases.forEach(c => {
     test(t => {
       assert_element_accepts_trusted_type(c[0], c[1], INPUTS.URL, RESULTS.URL);
-      assert_element_accepts_trusted_type(c[0], c[1], null, window.location.toString().replace(/[^\/]*$/, "null"));
+
+      // Properties that actually parse the URLs will resort to the base URL
+      // when given a null or empty URL.
+      assert_element_accepts_trusted_type(c[0], c[1], null, "" + window.location);
     }, c[0] + "." + c[1] + " accepts string and null after default policy was created.");
   });
 
   scriptURLTestCases.forEach(c => {
     test(t => {
       assert_element_accepts_trusted_type(c[0], c[1], INPUTS.SCRIPTURL, RESULTS.SCRIPTURL);
-      assert_element_accepts_trusted_type(c[0], c[1], null, window.location.toString().replace(/[^\/]*$/, "null"));
+
+      // Properties that actually parse the URLs will resort to the base URL
+      // when given a null or empty URL.
+      assert_element_accepts_trusted_type(c[0], c[1], null, "" + window.location);
     }, c[0] + "." + c[1] + " accepts string and null after default policy was created.");
   });
 
@@ -84,6 +121,13 @@
     }, c[0] + "." + c[1] + " accepts string and null after default policy was created.");
   });
 
+  ScriptTestCases.forEach(c => {
+    test(t => {
+      assert_element_accepts_trusted_type_explicit_set(c[0], c[1], INPUTS.SCRIPT, RESULTS.SCRIPT);
+      assert_element_accepts_trusted_type_explicit_set(c[0], c[1], null, "null");
+    }, c[0] + "." + c[1] + " accepts string and null after default policy was created.");
+  });
+
   // Other attributes can be assigned with TrustedTypes or strings or null values
   test(t => {
     assert_element_accepts_trusted_url_explicit_set(window, 'arel', t, 'a', 'rel', RESULTS.URL);
@@ -108,14 +152,4 @@
 
     assert_equals(span.getAttribute('src'), INPUTS.URL);
   }, "`span.src = setAttributeNode(div.src)` with string works.");
-
-  test(t => {
-    let el = document.createElement('iframe');
-
-    assert_throws(new TypeError(), _ => {
-      el.setAttribute('SrC', INPUTS.URL);
-    });
-
-    assert_equals(el.src, '');
-  }, "`Element.prototype.setAttribute.SrC = string` throws.");
 </script>
diff --git a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-HTMLElement-generic.tentative.html b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-HTMLElement-generic.tentative.html
index 4a5c2cc8d62..fd89bb33c13 100644
--- a/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-HTMLElement-generic.tentative.html
+++ b/tests/wpt/web-platform-tests/trusted-types/block-string-assignment-to-HTMLElement-generic.tentative.html
@@ -15,9 +15,12 @@
     [ 'a', 'href' ],
     [ 'area', 'href' ],
     [ 'base', 'href' ],
+    [ 'button', 'formAction' ],
+    [ 'form', 'action' ],
     [ 'frame', 'src' ],
     [ 'iframe', 'src' ],
     [ 'img', 'src' ],
+    [ 'input', 'formAction' ],
     [ 'input', 'src' ],
     [ 'link', 'href' ],
     [ 'video', 'src' ],
@@ -71,14 +74,14 @@
   URLTestCases.forEach(c => {
     test(t => {
       assert_element_accepts_trusted_type(c[0], c[1], INPUTS.URL, RESULTS.URL);
-      assert_element_accepts_trusted_type(c[0], c[1], null, window.location.toString().replace(/[^\/]*$/, "null"));
+      assert_element_accepts_trusted_type(c[0], c[1], null, "" + window.location);
     }, c[0] + "." + c[1] + " accepts string and null after default policy was created");
   });
 
   scriptURLTestCases.forEach(c => {
     test(t => {
       assert_element_accepts_trusted_type(c[0], c[1], INPUTS.SCRIPTURL, RESULTS.SCRIPTURL);
-      assert_element_accepts_trusted_type(c[0], c[1], null, window.location.toString().replace(/[^\/]*$/, "null"));
+      assert_element_accepts_trusted_type(c[0], c[1], null, "" + window.location);
     }, c[0] + "." + c[1] + " accepts string and null after default policy was created");
   });
 
diff --git a/tests/wpt/web-platform-tests/trusted-types/support/helper.sub.js b/tests/wpt/web-platform-tests/trusted-types/support/helper.sub.js
index bae9d2dc7aa..36ee24046ed 100644
--- a/tests/wpt/web-platform-tests/trusted-types/support/helper.sub.js
+++ b/tests/wpt/web-platform-tests/trusted-types/support/helper.sub.js
@@ -121,7 +121,9 @@ function assert_element_accepts_trusted_url_explicit_set(win, c, t, tag, attribu
 function assert_element_accepts_trusted_type_explicit_set(tag, attribute, value, expected) {
   let elem = document.createElement(tag);
   elem.setAttribute(attribute, value);
-  assert_equals(elem[attribute] + "", expected);
+  if (!/^on/.test(attribute)) { // "on" attributes are converted to functions.
+    assert_equals(elem[attribute] + "", expected);
+  }
   assert_equals(elem.getAttribute(attribute), expected);
 }
 
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/animation-worklet-import-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/animation-worklet-import-upgrade.https.html
new file mode 100644
index 00000000000..38e89eb8bd6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/animation-worklet-import-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: animation-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateModuleImportTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['animation-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/animation-worklet-redirect-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/animation-worklet-redirect-upgrade.https.html
new file mode 100644
index 00000000000..87d0d2aa2a9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/animation-worklet-redirect-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: animation-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateRedirectTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['animation-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/animation-worklet-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/animation-worklet-upgrade.https.html
new file mode 100644
index 00000000000..8a68b2d94ab
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/animation-worklet-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: animation-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['animation-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/audio-worklet-import-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/audio-worklet-import-upgrade.https.html
new file mode 100644
index 00000000000..56d7259647c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/audio-worklet-import-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: audio-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateModuleImportTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['audio-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/audio-worklet-redirect-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/audio-worklet-redirect-upgrade.https.html
new file mode 100644
index 00000000000..2e1984f6017
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/audio-worklet-redirect-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: audio-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateRedirectTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['audio-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/audio-worklet-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/audio-worklet-upgrade.https.html
new file mode 100644
index 00000000000..91d52adbdd3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/audio-worklet-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: audio-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['audio-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/iframe-redirect-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/iframe-redirect-upgrade.https.html
index 9a79825a450..72047493f17 100644
--- a/tests/wpt/web-platform-tests/upgrade-insecure-requests/iframe-redirect-upgrade.https.html
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/iframe-redirect-upgrade.https.html
@@ -1,37 +1,19 @@
 <!DOCTYPE html>
 <html>
 <head>
-<title>Upgrade Insecure Requests: IFrames.</title>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: iframe.</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
 
 <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
 </head>
 <body>
 <script>
-var tests = [
-  generateRedirect(Host.SAME_ORIGIN, Protocol.INSECURE, generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.FRAME)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.INSECURE, generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.FRAME)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.INSECURE, generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.FRAME)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.INSECURE, generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.FRAME)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.SECURE, generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.FRAME)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.SECURE, generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.FRAME)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.SECURE, generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.FRAME)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.SECURE, generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.FRAME)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.INSECURE, generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.FRAME)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.INSECURE, generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.FRAME)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.INSECURE, generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.FRAME)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.INSECURE, generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.FRAME)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.SECURE, generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.FRAME)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.SECURE, generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.FRAME)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.SECURE, generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.FRAME)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.SECURE, generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.FRAME)),
-];
-
-tests.forEach(test => {
-  async_test(t => assert_frame_loads(t, test.url), test.name);
-});
+const tests = generateRedirectTests(ResourceType.FRAME, false);
+tests.forEach(test => testMap['iframe'](test));
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/iframe-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/iframe-upgrade.https.html
index 8c4bb370df6..60c5aaaf95e 100644
--- a/tests/wpt/web-platform-tests/upgrade-insecure-requests/iframe-upgrade.https.html
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/iframe-upgrade.https.html
@@ -1,25 +1,19 @@
 <!DOCTYPE html>
 <html>
 <head>
-<title>Upgrade Insecure Requests: IFrames.</title>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: iframe.</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
 
 <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
 </head>
 <body>
 <script>
-var tests = [
-  generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.FRAME),
-  generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.FRAME),
-  generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.FRAME),
-  generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.FRAME),
-];
-
-tests.forEach(test => {
-  async_test(t => assert_frame_loads(t, test.url), test.name);
-});
+const tests = generateTests(ResourceType.FRAME, false);
+tests.forEach(test => testMap['iframe'](test));
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/image-redirect-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/image-redirect-upgrade.https.html
index 5ed75109dcd..69c3f1469e7 100644
--- a/tests/wpt/web-platform-tests/upgrade-insecure-requests/image-redirect-upgrade.https.html
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/image-redirect-upgrade.https.html
@@ -1,39 +1,19 @@
 <!DOCTYPE html>
 <html>
 <head>
-<title>Upgrade Insecure Requests: Redirected Images.</title>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: image.</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
 
 <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
 </head>
 <body>
 <script>
-var tests = [
-  generateRedirect(Host.SAME_ORIGIN, Protocol.INSECURE, generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.INSECURE, generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.INSECURE, generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.INSECURE, generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.SECURE, generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.SECURE, generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.SECURE, generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.SAME_ORIGIN, Protocol.SECURE, generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.INSECURE, generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.INSECURE, generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.INSECURE, generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.INSECURE, generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.SECURE, generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.SECURE, generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.SECURE, generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE)),
-  generateRedirect(Host.CROSS_ORIGIN, Protocol.SECURE, generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.IMAGE)),
-];
-
-tests.forEach(test => {
-  async_test(t => assert_image_loads(t, test.url, 64, 168), test.name);
-  async_test(t => assert_image_loads_in_srcdoc(t, test.url, 64, 168), test.name + " in <iframe srcdoc>");
-  async_test(t => assert_image_loads_in_blank(t, test.url, 64, 168), test.name + " in <iframe>");
-});
+const tests = generateRedirectTests(ResourceType.IMAGE, false);
+tests.forEach(test => testMap['image'](test));
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/image-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/image-upgrade.https.html
index 515c67469a1..5ab6306ed46 100644
--- a/tests/wpt/web-platform-tests/upgrade-insecure-requests/image-upgrade.https.html
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/image-upgrade.https.html
@@ -1,27 +1,19 @@
 <!DOCTYPE html>
 <html>
 <head>
-<title>Upgrade Insecure Requests: Images.</title>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: image.</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
 
 <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
 </head>
 <body>
 <script>
-var tests = [
-  generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE),
-  generateURL(Host.SAME_ORIGIN, Protocol.SECURE, ResourceType.IMAGE),
-  generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, ResourceType.IMAGE),
-  generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, ResourceType.IMAGE),
-];
-
-tests.forEach(test => {
-  async_test(t => assert_image_loads(t, test.url, 64, 168), test.name);
-  async_test(t => assert_image_loads_in_srcdoc(t, test.url, 64, 168), test.name + " in <iframe srcdoc>");
-  async_test(t => assert_image_loads_in_blank(t, test.url, 64, 168), test.name + " in <iframe>");
-});
+const tests = generateTests(ResourceType.IMAGE, false);
+tests.forEach(test => testMap['image'](test));
 </script>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/layout-worklet-import-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/layout-worklet-import-upgrade.https.html
new file mode 100644
index 00000000000..ffc73afc42a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/layout-worklet-import-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: layout-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateModuleImportTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['layout-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/layout-worklet-redirect-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/layout-worklet-redirect-upgrade.https.html
new file mode 100644
index 00000000000..c9c95317001
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/layout-worklet-redirect-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: layout-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateRedirectTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['layout-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/layout-worklet-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/layout-worklet-upgrade.https.html
new file mode 100644
index 00000000000..7cbdff3902c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/layout-worklet-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: layout-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['layout-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/module-worker-import-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/module-worker-import-upgrade.https.html
new file mode 100644
index 00000000000..0522051ebd4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/module-worker-import-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: module-worker.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateModuleImportTests(ResourceType.WORKER, true);
+tests.forEach(test => testMap['module-worker'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/module-worker-redirect-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/module-worker-redirect-upgrade.https.html
new file mode 100644
index 00000000000..132663e3652
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/module-worker-redirect-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: module-worker.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateRedirectTests(ResourceType.WORKER, true);
+tests.forEach(test => testMap['module-worker'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/module-worker-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/module-worker-upgrade.https.html
new file mode 100644
index 00000000000..a4be5ed45a9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/module-worker-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: module-worker.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateTests(ResourceType.WORKER, true);
+tests.forEach(test => testMap['module-worker'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/paint-worklet-import-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/paint-worklet-import-upgrade.https.html
new file mode 100644
index 00000000000..96d68e260bb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/paint-worklet-import-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: paint-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateModuleImportTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['paint-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/paint-worklet-redirect-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/paint-worklet-redirect-upgrade.https.html
new file mode 100644
index 00000000000..0675c6ab0cb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/paint-worklet-redirect-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: paint-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateRedirectTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['paint-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/paint-worklet-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/paint-worklet-upgrade.https.html
new file mode 100644
index 00000000000..b4f1aac04de
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/paint-worklet-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: paint-worklet.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateTests(ResourceType.WORKLET, false);
+tests.forEach(test => testMap['paint-worklet'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/generate.py b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/generate.py
new file mode 100644
index 00000000000..2676d0c68de
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/generate.py
@@ -0,0 +1,48 @@
+# Usage: execute
+# $ python support/generate.py
+# at wpt/upgrade-insecure-requests/.
+#
+# Note: Some tests (link-upgrade.sub.https.html and
+# websocket-upgrade.https.html) are not covered by this generator script.
+
+template = '''<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: %(name)s.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = %(generatorName)s(ResourceType.%(resourceType)s, %(sameOriginOnly)s);
+tests.forEach(test => testMap['%(name)s'](test));
+</script>
+</body>
+</html>
+'''
+
+# resourceType is |ResourceType| in testharness-helper.sub.js.
+for name, resourceType in [
+  ('image', 'IMAGE'), ('iframe', 'FRAME'),
+  ('animation-worklet', 'WORKLET'), ('audio-worklet', 'WORKLET'),
+  ('layout-worklet', 'WORKLET'), ('paint-worklet', 'WORKLET'),
+  ('worker', 'WORKER'),
+  ('module-worker', 'WORKER'),
+  ('worker-subresource-xhr', 'IMAGE'),
+  ('worker-subresource-fetch', 'IMAGE')]:
+  sameOriginOnly = 'true' if resourceType == 'WORKER' else 'false'
+  types = [('', 'generateTests'), ('-redirect', 'generateRedirectTests')]
+  if name == 'module-worker' or resourceType == 'WORKLET':
+    types.append(('-import', 'generateModuleImportTests'))
+  for typeName, generatorName in types:
+    with open('%s%s-upgrade.https.html' % (name, typeName), 'w') as html_file:
+      html_file.write(template % {
+          'name': name,
+          'resourceType': resourceType,
+          'generatorName': generatorName,
+          'sameOriginOnly': sameOriginOnly})
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/pass.png.headers b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/pass.png.headers
new file mode 100644
index 00000000000..cb762eff806
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/pass.png.headers
@@ -0,0 +1 @@
+Access-Control-Allow-Origin: *
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/redirect-cors.py b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/redirect-cors.py
new file mode 100644
index 00000000000..56493e0056f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/redirect-cors.py
@@ -0,0 +1,5 @@
+def main(request, response):
+    response.status = 302
+    location = request.GET.first("location")
+    response.headers.set("Location", location)
+    response.headers.set("Access-Control-Allow-Origin", "*")
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/testharness-helper.sub.js b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/testharness-helper.sub.js
index 8bf576c2abd..8b58eb95604 100644
--- a/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/testharness-helper.sub.js
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/testharness-helper.sub.js
@@ -11,6 +11,8 @@ const Protocol = {
 const ResourceType = {
   IMAGE: "image",
   FRAME: "frame",
+  WORKER: "worker",
+  WORKLET: "worklet",
   WEBSOCKET: "websocket",
 };
 
@@ -31,6 +33,10 @@ function generateURL(host, protocol, resourceType) {
     url.port = {{ports[wss][0]}};
     url.protocol = protocol == Protocol.INSECURE ? "ws" : "wss";
     url.pathname = "echo";
+  } else if (resourceType == ResourceType.WORKER) {
+    url.pathname += "worker.js";
+  } else if (resourceType == ResourceType.WORKLET) {
+    url.pathname = "/worklets/resources/empty-worklet-script-with-cors-header.js";
   }
   return {
     name: protocol + "/" + host + " "  + resourceType,
@@ -38,16 +44,66 @@ function generateURL(host, protocol, resourceType) {
   };
 }
 
-function generateRedirect(host, protocol, target) {
-  var url = new URL("http://{{host}}:{{ports[https][0]}}/common/redirect.py?location=" + encodeURIComponent(target.url));
+function generateRedirect(host, protocol, finalTest) {
+  var url = new URL("http://{{host}}:{{ports[https][0]}}/upgrade-insecure-requests/support/redirect-cors.py?location=" + encodeURIComponent(finalTest.url));
   url.protocol = protocol == Protocol.INSECURE ? "http" : "https";
   url.hostname = host == Host.SAME_ORIGIN ? "{{host}}" : "{{domains[天気の良い日]}}";
   return {
-    name: protocol + "/" + host + " => " + target.name,
+    name: protocol + "/" + host + " => " + finalTest.name,
     url: url.toString()
   };
 }
 
+function generateDataImport(finalTest) {
+  return {
+    name: "data: =(import)=> " + finalTest.name,
+    url: workerUrlThatImports(finalTest.url)
+  };
+}
+
+function generateTests(target, sameOriginOnly) {
+  var tests = [];
+
+  tests.push(generateURL(Host.SAME_ORIGIN, Protocol.SECURE, target));
+  tests.push(generateURL(Host.SAME_ORIGIN, Protocol.INSECURE, target));
+  if (!sameOriginOnly) {
+    tests.push(generateURL(Host.CROSS_ORIGIN, Protocol.SECURE, target));
+    tests.push(generateURL(Host.CROSS_ORIGIN, Protocol.INSECURE, target));
+  }
+
+  return tests;
+}
+
+function generateRedirectTests(target, sameOriginOnly) {
+  const finalTests = generateTests(target, sameOriginOnly);
+  var tests = [];
+
+  for (const finalTest of finalTests) {
+    tests.push(generateRedirect(Host.SAME_ORIGIN, Protocol.SECURE, finalTest));
+    tests.push(generateRedirect(Host.SAME_ORIGIN, Protocol.INSECURE, finalTest));
+    if (!sameOriginOnly) {
+      tests.push(generateRedirect(Host.CROSS_ORIGIN, Protocol.SECURE, finalTest));
+      tests.push(generateRedirect(Host.CROSS_ORIGIN, Protocol.INSECURE, finalTest));
+    }
+  }
+  return tests;
+}
+
+function generateModuleImportTests(target, sameOriginOnly) {
+  // |sameOriginOnly| is ignored as the top-level URL (generateDataImport())
+  // is always same-origin (as it is data: URL) and import()ed URLs (URLs in
+  // finalTests) can be cross-origin.
+
+  var finalTests = generateTests(target, false);
+  finalTests = finalTests.concat(generateRedirectTests(target, false));
+
+  var tests = [];
+  for (const finalTest of finalTests) {
+    tests.push(generateDataImport(finalTest));
+  }
+  return tests;
+}
+
 function assert_image_loads(test, url, height, width) {
   var i = document.createElement('img');
   i.onload = test.step_func_done(_ => {
@@ -113,3 +169,42 @@ function assert_websocket_loads(test, url) {
   });
   w.onclose = test.unreached_func("WebSocket should not close before open is called.");
 }
+
+const testMap = {
+  "image": test => {
+    async_test(t => assert_image_loads(t, test.url, 64, 168), test.name);
+    async_test(t => assert_image_loads_in_srcdoc(t, test.url, 64, 168), test.name + " in <iframe srcdoc>");
+    async_test(t => assert_image_loads_in_blank(t, test.url, 64, 168), test.name + " in <iframe>");
+  },
+  "iframe":
+    test => async_test(t => assert_frame_loads(t, test.url), test.name),
+
+  "worker":
+    test => promise_test(
+        () => requestViaDedicatedWorker(test.url, {}),
+        test.name),
+
+  "module-worker":
+    test => promise_test(
+        () => requestViaDedicatedWorker(test.url, {type: "module"}),
+        test.name),
+
+  "worker-subresource-fetch":
+    test => promise_test(
+        () => requestViaDedicatedWorker(dedicatedWorkerUrlThatFetches(test.url),
+                                        {}),
+        test.name),
+
+  "audio-worklet":
+    test => promise_test(
+        () => requestViaWorklet('audio', test.url), test.name),
+  "animation-worklet":
+    test => promise_test(
+        () => requestViaWorklet('animation', test.url), test.name),
+  "layout-worklet":
+    test => promise_test(
+        () => requestViaWorklet('layout', test.url), test.name),
+  "paint-worklet":
+    test => promise_test(
+        () => requestViaWorklet('paint', test.url), test.name),
+};
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/worker.js b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/worker.js
new file mode 100644
index 00000000000..7e2168bcc06
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/worker.js
@@ -0,0 +1 @@
+postMessage('done');
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/worker.js.headers b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/worker.js.headers
new file mode 100644
index 00000000000..cb762eff806
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/support/worker.js.headers
@@ -0,0 +1 @@
+Access-Control-Allow-Origin: *
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-redirect-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-redirect-upgrade.https.html
new file mode 100644
index 00000000000..19fbb1fc5af
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-redirect-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: worker.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateRedirectTests(ResourceType.WORKER, true);
+tests.forEach(test => testMap['worker'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-subresource-fetch-redirect-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-subresource-fetch-redirect-upgrade.https.html
new file mode 100644
index 00000000000..91ff96d978c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-subresource-fetch-redirect-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: worker-subresource-fetch.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateRedirectTests(ResourceType.IMAGE, false);
+tests.forEach(test => testMap['worker-subresource-fetch'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-subresource-fetch-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-subresource-fetch-upgrade.https.html
new file mode 100644
index 00000000000..9fb4f853452
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-subresource-fetch-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: worker-subresource-fetch.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateTests(ResourceType.IMAGE, false);
+tests.forEach(test => testMap['worker-subresource-fetch'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-upgrade.https.html b/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-upgrade.https.html
new file mode 100644
index 00000000000..9f2cea16b93
--- /dev/null
+++ b/tests/wpt/web-platform-tests/upgrade-insecure-requests/worker-upgrade.https.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<!-- Generated by wpt/upgrade-insecure-requests/support/generate.py -->
+<title>Upgrade Insecure Requests: worker.</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/testharness-helper.sub.js"></script>
+<script src="/mixed-content/generic/common.js"></script>
+
+<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
+</head>
+<body>
+<script>
+const tests = generateTests(ResourceType.WORKER, true);
+tests.forEach(test => testMap['worker'](test));
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/web-animations/interfaces/Animatable/getAnimations.html b/tests/wpt/web-platform-tests/web-animations/interfaces/Animatable/getAnimations.html
index 182b5cbe533..430aa4c15cc 100644
--- a/tests/wpt/web-platform-tests/web-animations/interfaces/Animatable/getAnimations.html
+++ b/tests/wpt/web-platform-tests/web-animations/interfaces/Animatable/getAnimations.html
@@ -65,7 +65,50 @@ test(t => {
     delay: 100 * MS_PER_SEC,
   });
   assert_array_equals(div.getAnimations(), [animation]);
-}, 'Returns animations in their delay phase');
+}, 'Returns animations yet to reach their active phase');
+
+test(t => {
+  const div = createDiv(t);
+  const animation = div.animate(null, 100 * MS_PER_SEC);
+  animation.playbackRate = -1;
+  assert_array_equals(div.getAnimations(), []);
+}, 'Does not return reversed finished animations that do not fill backwards');
+
+test(t => {
+  const div = createDiv(t);
+  const animation = div.animate(null, {
+    duration: 100 * MS_PER_SEC,
+    fill: 'backwards',
+  });
+  animation.playbackRate = -1;
+  assert_array_equals(div.getAnimations(), [animation]);
+}, 'Returns reversed finished animations that fill backwards');
+
+test(t => {
+  const div = createDiv(t);
+  const animation = div.animate(null, 100 * MS_PER_SEC);
+  animation.playbackRate = -1;
+  animation.currentTime = 200 * MS_PER_SEC;
+  assert_array_equals(div.getAnimations(), [animation]);
+}, 'Returns reversed animations yet to reach their active phase');
+
+test(t => {
+  const div = createDiv(t);
+  const animation = div.animate(null, {
+    duration: 100 * MS_PER_SEC,
+    delay: 100 * MS_PER_SEC,
+  });
+  animation.playbackRate = 0;
+  assert_array_equals(div.getAnimations(), []);
+}, 'Does not return animations with zero playback rate in before phase');
+
+test(t => {
+  const div = createDiv(t);
+  const animation = div.animate(null, 100 * MS_PER_SEC);
+  animation.finish();
+  animation.playbackRate = 0;
+  animation.currentTime = 200 * MS_PER_SEC;
+}, 'Does not return animations with zero playback rate in after phase');
 
 test(t => {
   const div = createDiv(t);
diff --git a/tests/wpt/web-platform-tests/webdriver/tests/new_session/timeouts.py b/tests/wpt/web-platform-tests/webdriver/tests/new_session/timeouts.py
index c5adb939681..4f2652bba86 100644
--- a/tests/wpt/web-platform-tests/webdriver/tests/new_session/timeouts.py
+++ b/tests/wpt/web-platform-tests/webdriver/tests/new_session/timeouts.py
@@ -1,6 +1,6 @@
 import pytest
 
-from tests.support.asserts import assert_success
+from tests.support.asserts import assert_success, assert_error
 
 
 def test_default_values(session):
@@ -15,8 +15,18 @@ def test_default_values(session):
     {"implicit": 444, "pageLoad": 300000,"script": 30000},
     {"implicit": 0, "pageLoad": 444,"script": 30000},
     {"implicit": 0, "pageLoad": 300000,"script": 444},
+    {"implicit": 0, "pageLoad": 300000,"script": None},
 ])
 def test_timeouts(new_session, add_browser_capabilities, timeouts):
     response, _ = new_session({"capabilities": {"alwaysMatch": add_browser_capabilities({"timeouts": timeouts})}})
     value = assert_success(response)
     assert value["capabilities"]["timeouts"] == timeouts
+
+@pytest.mark.parametrize("timeouts", [
+    {"implicit": None, "pageLoad": 300000,"script": 30000},
+    {"implicit": 0, "pageLoad": None,"script": 30000},
+    {"implicit": None, "pageLoad": None,"script": None}
+])
+def test_invalid_timeouts(new_session, add_browser_capabilities, timeouts):
+    response, _ = new_session({"capabilities": {"alwaysMatch": add_browser_capabilities({"timeouts": timeouts})}})
+    assert_error(response, "invalid argument")
diff --git a/tests/wpt/web-platform-tests/webdriver/tests/set_timeouts/set.py b/tests/wpt/web-platform-tests/webdriver/tests/set_timeouts/set.py
index a78ab2e68e8..4fbe83bf01b 100644
--- a/tests/wpt/web-platform-tests/webdriver/tests/set_timeouts/set.py
+++ b/tests/wpt/web-platform-tests/webdriver/tests/set_timeouts/set.py
@@ -39,6 +39,15 @@ def test_parameters_empty_no_change(session):
     assert session.timeouts._get() == original
 
 
+def test_script_parameter_empty_no_change(session):
+    original = session.timeouts._get()
+
+    response = set_timeouts(session, {"implicit": 100})
+    assert_success(response)
+
+    assert session.timeouts._get()["script"] == original["script"]
+
+
 def test_key_invalid(session):
     response = set_timeouts(session, {"foo": 1000})
     assert_error(response, "invalid argument")
@@ -53,13 +62,19 @@ def test_positive_integer(session, typ, value):
     assert session.timeouts._get(typ) == value
 
 
-@pytest.mark.parametrize("typ", ["implicit", "pageLoad", "script"])
+@pytest.mark.parametrize("typ", ["implicit", "pageLoad"])
 @pytest.mark.parametrize("value", [None, [], {}, False, "10"])
 def test_value_invalid_types(session, typ, value):
     response = set_timeouts(session, {typ: value})
     assert_error(response, "invalid argument")
 
 
+@pytest.mark.parametrize("value", [[], {}, False, "10"])
+def test_value_invalid_types_for_script(session, value):
+    response = set_timeouts(session, {"script": value})
+    assert_error(response, "invalid argument")
+
+
 @pytest.mark.parametrize("typ", ["implicit", "pageLoad", "script"])
 @pytest.mark.parametrize("value", [-1, 2.5, 2**53])
 def test_value_positive_integer(session, typ, value):
@@ -75,3 +90,10 @@ def test_set_all_fields(session):
     assert session.timeouts.implicit == 10
     assert session.timeouts.page_load == 20
     assert session.timeouts.script == 30
+
+
+def test_script_value_null(session):
+    response = set_timeouts(session, {"script": None})
+    assert_success(response)
+
+    assert session.timeouts.script == None
diff --git a/tests/wpt/web-platform-tests/webdriver/tests/switch_to_frame/switch.py b/tests/wpt/web-platform-tests/webdriver/tests/switch_to_frame/switch.py
index 10948102239..67b855a96d9 100644
--- a/tests/wpt/web-platform-tests/webdriver/tests/switch_to_frame/switch.py
+++ b/tests/wpt/web-platform-tests/webdriver/tests/switch_to_frame/switch.py
@@ -1,7 +1,11 @@
+import pytest
+
 import webdriver.protocol as protocol
+
+from webdriver import StaleElementReferenceException
 from webdriver.transport import Response
 
-from tests.support.asserts import assert_error, assert_success
+from tests.support.asserts import assert_error, assert_same_element, assert_success
 from tests.support.inline import inline, iframe
 
 
@@ -13,6 +17,11 @@ def switch_to_frame(session, frame):
         session=session)
 
 
+def frameset(*docs):
+    frames = map(lambda doc: "<frame src='{}'></frame>".format(inline(doc)), docs)
+    return "<frameset rows='{}'>\n{}</frameset>".format(len(frames) * "*,", "\n".join(frames))
+
+
 def test_null_parameter_value(session, http):
     path = "/session/{session_id}/frame".format(**vars(session))
     with http.post(path, None) as response:
@@ -21,13 +30,120 @@ def test_null_parameter_value(session, http):
 
 def test_null_response_value(session):
     session.url = inline(iframe("<p>foo"))
-    frame_element = session.find.css("iframe", all=False)
+    frame = session.find.css("iframe", all=False)
 
-    response = switch_to_frame(session, frame_element)
+    response = switch_to_frame(session, frame)
     value = assert_success(response)
     assert value is None
 
 
+@pytest.mark.parametrize("value", ["foo", True, [], {}])
+def test_frame_id_invalid_types(session, value):
+    response = switch_to_frame(session, value)
+    assert_error(response, "invalid argument")
+
+
+@pytest.mark.parametrize("value", [-1, 2**16])
+def test_frame_id_out_of_bounds(session, value):
+    response = switch_to_frame(session, value)
+    assert_error(response, "invalid argument")
+
+
 def test_no_browsing_context(session, closed_window):
     response = switch_to_frame(session, 1)
     assert_error(response, "no such window")
+
+
+def test_frame_id_null(session):
+    session.url = inline(iframe("{}<div>foo".format(iframe("<p>bar"))))
+
+    frame1 = session.find.css("iframe", all=False)
+    session.switch_frame(frame1)
+    frame1_element = session.find.css("div", all=False)
+
+    frame2 = session.find.css("iframe", all=False)
+    session.switch_frame(frame2)
+    frame2_element = session.find.css("p", all=False)
+
+    # Switch to top-level browsing context
+    response = switch_to_frame(session, None)
+    assert_success(response)
+
+    with pytest.raises(StaleElementReferenceException):
+        frame2_element.text
+    with pytest.raises(StaleElementReferenceException):
+        frame1_element.text
+
+    frame = session.find.css("iframe", all=False)
+    assert_same_element(session, frame, frame1)
+
+
+@pytest.mark.parametrize("index, value", [[0, "foo"], [1, "bar"]])
+def test_frame_id_number_index(session, index, value):
+    session.url = inline("{}{}".format(iframe("<p>foo"), iframe("<p>bar")))
+
+    response = switch_to_frame(session, index)
+    assert_success(response)
+
+    frame_element = session.find.css("p", all=False)
+    assert frame_element.text == value
+
+
+def test_frame_id_number_index_out_of_bounds(session):
+    session.url = inline(iframe("<p>foo"))
+
+    response = switch_to_frame(session, 1)
+    assert_error(response, "no such frame")
+
+
+@pytest.mark.parametrize("index, value", [[0, "foo"], [1, "bar"]])
+def test_frame_id_webelement_frame(session, index, value):
+    session.url = inline(frameset("<p>foo", "<p>bar"))
+    frames = session.find.css("frame")
+    assert len(frames) == 2
+
+    response = switch_to_frame(session, frames[index])
+    assert_success(response)
+
+    frame_element = session.find.css("p", all=False)
+    assert frame_element.text == value
+
+
+@pytest.mark.parametrize("index, value", [[0, "foo"], [1, "bar"]])
+def test_frame_id_webelement_iframe(session, index, value):
+    session.url = inline("{}{}".format(iframe("<p>foo"), iframe("<p>bar")))
+    frames = session.find.css("iframe")
+    assert len(frames) == 2
+
+    response = switch_to_frame(session, frames[index])
+    assert_success(response)
+
+    frame_element = session.find.css("p", all=False)
+    assert frame_element.text == value
+
+
+def test_frame_id_webelement_no_element_reference(session):
+    session.url = inline(iframe("<p>foo"))
+    frame = session.find.css("iframe", all=False)
+    frame.id = "bar"
+
+    response = switch_to_frame(session, frame)
+    assert_error(response, "no such element")
+
+
+def test_frame_id_webelement_stale_reference(session):
+    session.url = inline(iframe("<p>foo"))
+    frame = session.find.css("iframe", all=False)
+
+    session.switch_frame(frame)
+
+    response = switch_to_frame(session, frame)
+    assert_error(response, "stale element reference")
+
+
+def test_frame_id_webelement_no_frame_element(session):
+    session.url = inline("<p>foo")
+    no_frame = session.find.css("p", all=False)
+
+    response = switch_to_frame(session, no_frame)
+    assert_error(response, "no such frame")
diff --git a/tests/wpt/web-platform-tests/webdriver/tests/take_screenshot/__init__.py b/tests/wpt/web-platform-tests/webdriver/tests/take_screenshot/__init__.py
index 13d7a623eda..fe057a4932e 100644
--- a/tests/wpt/web-platform-tests/webdriver/tests/take_screenshot/__init__.py
+++ b/tests/wpt/web-platform-tests/webdriver/tests/take_screenshot/__init__.py
@@ -1,6 +1,2 @@
 def document_dimensions(session):
-    return tuple(session.execute_script("""
-        let devicePixelRatio = window.devicePixelRatio;
-        let rect = document.documentElement.getBoundingClientRect();
-        return [Math.floor(rect.width * devicePixelRatio), Math.floor(rect.height * devicePixelRatio)];
-        """))
+    return tuple(session.execute_script("return [window.innerWidth, window.innerHeight];"))
diff --git a/tests/wpt/web-platform-tests/webrtc/RTCRtpReceiver-getSynchronizationSources.https.html b/tests/wpt/web-platform-tests/webrtc/RTCRtpReceiver-getSynchronizationSources.https.html
index 80685580e22..36460b47990 100644
--- a/tests/wpt/web-platform-tests/webrtc/RTCRtpReceiver-getSynchronizationSources.https.html
+++ b/tests/wpt/web-platform-tests/webrtc/RTCRtpReceiver-getSynchronizationSources.https.html
@@ -1,79 +1,111 @@
 <!doctype html>
 <meta charset=utf-8>
+<!-- This file contains two tests that wait for 10 seconds each. -->
+<meta name="timeout" content="long">
 <title>RTCRtpReceiver.prototype.getSynchronizationSources</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="RTCPeerConnection-helper.js"></script>
 <script>
-  'use strict';
+'use strict';
 
-  // Test is based on the following editor draft:
-  // https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html
+async function initiateSingleTrackCallAndReturnReceiver(t, kind) {
+  const pc1 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc2.close());
 
-  /*
-    5.3.  RTCRtpReceiver Interface
-      interface RTCRtpReceiver {
-        ...
-        sequence<RTCRtpSynchronizationSource> getSynchronizationSources();
-      };
+  const stream = await navigator.mediaDevices.getUserMedia({[kind]:true});
+  const [track] = stream.getTracks();
+  t.add_cleanup(() => track.stop());
+  pc1.addTrack(track, stream);
 
-      interface RTCRtpSynchronizationSource {
-        readonly attribute DOMHighResTimeStamp timestamp;
-        readonly attribute unsigned long       source;
-        readonly attribute byte                audioLevel;
-        readonly attribute boolean?            voiceActivityFlag;
-      };
-   */
+  exchangeIceCandidates(pc1, pc2);
+  const trackEvent = await exchangeOfferAndListenToOntrack(t, pc1, pc2);
+  await exchangeAnswer(pc1, pc2);
+  return trackEvent.receiver;
+}
 
-  promise_test(t => {
-    const pc1 = new RTCPeerConnection();
-    t.add_cleanup(() => pc1.close());
-    const pc2 = new RTCPeerConnection();
-
-    t.add_cleanup(() => pc2.close());
-
-    const ontrackPromise = new Promise(resolve => {
-      pc2.addEventListener('track', trackEvent => {
-        const { receiver } = trackEvent;
-        assert_true(receiver instanceof RTCRtpReceiver,
-          'Expect trackEvent.receiver to be instance of RTCRtpReceiver');
-
-        resolve(receiver);
-      });
-    });
-
-    return getTrackFromUserMedia('audio')
-    .then(([track, mediaStream]) => {
-      pc1.addTrack(track, mediaStream);
-      exchangeIceCandidates(pc1, pc2);
-      return doSignalingHandshake(pc1, pc2);
-    })
-    .then(() => ontrackPromise)
-    .then(receiver => {
-      const syncSources = receiver.getSynchronizationSources();
-      assert_greater_than(syncSources.length, 0,
-        'Expect SSRCs to be available after RTP connection is established');
-
-      for(const ssrc of syncSources) {
-        assert_true(ssrc instanceof RTCRtpSynchronizationSource,
-          'Expect synchronizationSources elements to be instance of RTCSynchronizationSource');
-
-        assert_equals(typeof ssrc.timestamp, 'number',
-          'Expect ssrc.timestamp attribute to be DOMHighResTimeStamp');
-
-        assert_true(Number.isInteger(ssrc.source) && ssrc.source > 0,
-          'Expect SSRC identifier to be unsigned long');
-
-        assert_true(Number.isInteger(ssrc.audioLevel) &&
-          ssrc.audioLevel >= 0 && ssrc.audioLevel <= 127,
-          'Expect ssrc.audioLevel to be byte value from 0-127.');
-
-        if(ssrc.voiceActivityFlag !== null) {
-          assert_equals(typeof ssrc.voiceActivityFlag, 'boolean',
-            'Expect ssrc.voiceActivity to be either null or boolean');
-        }
+function listenForSSRCs(t, receiver) {
+  return new Promise((resolve) => {
+    function listen() {
+      const ssrcs = receiver.getSynchronizationSources();
+      assert_true(ssrcs != undefined);
+      if (ssrcs.length > 0) {
+        resolve(ssrcs);
+        return;
       }
-    });
-  }, `getContributingSources() should return list of CSRC after connection is established`);
+      t.step_timeout(listen, 0);
+    };
+    listen();
+  });
+}
+
+for (const kind of ['audio', 'video']) {
+  promise_test(async t => {
+    const receiver = await initiateSingleTrackCallAndReturnReceiver(t, kind);
+    await listenForSSRCs(t, receiver);
+  }, '[' + kind + '] getSynchronizationSources() eventually returns a ' +
+     'non-empty list');
+
+  promise_test(async t => {
+    const startTime = performance.now();
+    const receiver = await initiateSingleTrackCallAndReturnReceiver(t, kind);
+    const [ssrc] = await listenForSSRCs(t, receiver);
+    assert_equals(typeof ssrc.timestamp, 'number');
+    assert_true(ssrc.timestamp >= startTime);
+  }, '[' + kind + '] RTCRtpSynchronizationSource.timestamp is a number');
+
+  promise_test(async t => {
+    const receiver = await initiateSingleTrackCallAndReturnReceiver(t, kind);
+    // Wait for packets to start flowing.
+    await listenForSSRCs(t, receiver);
+    // Wait for 10 seconds.
+    await new Promise(resolve => t.step_timeout(resolve, 10000));
+    let earliestTimestamp = undefined;
+    let latestTimestamp = undefined;
+    for (const ssrc of await listenForSSRCs(t, receiver)) {
+      if (earliestTimestamp == undefined || earliestTimestamp > ssrc.timestamp)
+        earliestTimestamp = ssrc.timestamp;
+      if (latestTimestamp == undefined || latestTimestamp < ssrc.timestamp)
+        latestTimestamp = ssrc.timestamp;
+    }
+    assert_true(latestTimestamp - earliestTimestamp <= 10000);
+  }, '[' + kind + '] getSynchronizationSources() does not contain SSRCs ' +
+     'older than 10 seconds');
+
+  promise_test(async t => {
+    const startTime = performance.timeOrigin + performance.now();
+    const receiver = await initiateSingleTrackCallAndReturnReceiver(t, kind);
+    const [ssrc] = await listenForSSRCs(t, receiver);
+    const endTime = performance.timeOrigin + performance.now();
+    assert_true(startTime <= ssrc.timestamp && ssrc.timestamp <= endTime);
+  }, '[' + kind + '] RTCRtpSynchronizationSource.timestamp is comparable to ' +
+     'performance.timeOrigin + performance.now()');
+
+  promise_test(async t => {
+    const receiver = await initiateSingleTrackCallAndReturnReceiver(t, kind);
+    const [ssrc] = await listenForSSRCs(t, receiver);
+    assert_equals(typeof ssrc.source, 'number');
+  }, '[' + kind + '] RTCRtpSynchronizationSource.source is a number');
+}
+
+promise_test(async t => {
+  const receiver = await initiateSingleTrackCallAndReturnReceiver(t, 'audio');
+  const [ssrc] = await listenForSSRCs(t, receiver);
+  assert_equals(typeof ssrc.audioLevel, 'number');
+  assert_greater_than_equal(ssrc.audioLevel, 0);
+  assert_less_than_equal(ssrc.audioLevel, 1);
+}, '[audio-only] RTCRtpSynchronizationSource.audioLevel is a number [0, 1]');
+
+// This test only passes if the implementation is sending the RFC 6464 extension
+// header and the "vad" extension attribute is not "off", otherwise
+// voiceActivityFlag is absent. TODO: Consider moving this test to an
+// optional-to-implement subfolder?
+promise_test(async t => {
+  const receiver = await initiateSingleTrackCallAndReturnReceiver(t, 'audio');
+  const [ssrc] = await listenForSSRCs(t, receiver);
+  assert_equals(typeof ssrc.voiceActivityFlag, 'boolean');
+}, '[audio-only] RTCRtpSynchronizationSource.voiceActivityFlag is a boolean');
 
 </script>
diff --git a/tests/wpt/web-platform-tests/webxr/xrSession_device.https.html b/tests/wpt/web-platform-tests/webxr/xrSession_device.https.html
deleted file mode 100644
index 0b482f55a88..00000000000
--- a/tests/wpt/web-platform-tests/webxr/xrSession_device.https.html
+++ /dev/null
@@ -1,24 +0,0 @@
-<!DOCTYPE html>
-<body>
-  <script src=/resources/testharness.js></script>
-  <script src=/resources/testharnessreport.js></script>
-  <script src="resources/webxr_util.js"></script>
-  <canvas></canvas>
-
-  <script>
-    xr_promise_test("Requested session has device set",
-     (t) => {
-      return XRTest.simulateDeviceConnection({ supportsImmersive:true })
-        .then( (controller) => { return navigator.xr.requestDevice() })
-        .then( (device) => new Promise((resolve) => {
-          XRTest.simulateUserActivation( () => {
-            resolve(device.requestSession({ immersive: true }).then( (session) => {
-              assert_true(session.immersive);
-              assert_equals(session.device, device);
-            }));
-          });
-        }));
-    });
-  </script>
-</body>
-
diff --git a/tests/wpt/web-platform-tests/worklets/layout-worklet-csp.https.html b/tests/wpt/web-platform-tests/worklets/layout-worklet-csp.https.html
index 854df8c8e18..a670f802654 100644
--- a/tests/wpt/web-platform-tests/worklets/layout-worklet-csp.https.html
+++ b/tests/wpt/web-platform-tests/worklets/layout-worklet-csp.https.html
@@ -1,6 +1,7 @@
 <!DOCTYPE html>
 <html>
 <head>
+    <meta name="timeout" content="long">
     <script src="/common/get-host-info.sub.js"></script>
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
diff --git a/tests/wpt/web-platform-tests/worklets/resources/csp-tests.js b/tests/wpt/web-platform-tests/worklets/resources/csp-tests.js
index d2ca05f3998..ab698d0efd5 100644
--- a/tests/wpt/web-platform-tests/worklets/resources/csp-tests.js
+++ b/tests/wpt/web-platform-tests/worklets/resources/csp-tests.js
@@ -24,7 +24,6 @@ function openWindowAndExpectResult(windowURL, scriptURL, type, expectation) {
 function runContentSecurityPolicyTests(workletType) {
   runSrcTests(workletType);
   runMixedContentTests(workletType);
-  runUpgradeInsecureRequestsTests(workletType);
 }
 
 // script-src and worker-src tests.
@@ -146,41 +145,3 @@ function runMixedContentTests(workletType) {
       scriptConfig.message + ' should be blocked because of mixed contents.');
   }
 }
-
-// upgrade-insecure-requests tests.
-function runUpgradeInsecureRequestsTests(workletType) {
-  // |kToBeUpgradedURL| is expected to upgraded/loaded successfully with
-  // upgrade-insecure-requests is specified.
-  // This relies on some unintuitive cleverness due to WPT's test setup:
-  // 'Upgrade-Insecure-Requests' does not upgrade the port number, so we use
-  // URLs in the form `http://[host]:[https-port]`. If the upgrade fails, the
-  // load will fail, as we don't serve HTTP over the secure port.
-  const kHost = get_host_info().ORIGINAL_HOST;
-  const kPort = get_host_info().HTTPS_PORT;
-  const kToBeUpgradedURL =
-      `http://${kHost}:${kPort}/worklets/resources/empty-worklet-script-with-cors-header.js`;
-
-  const kScriptConfigs = [
-    {URL: kToBeUpgradedURL,
-     message: 'An insecure-origin worklet'},
-    {URL: '/common/redirect.py?location=' +
-          encodeURIComponent(kToBeUpgradedURL),
-     message: 'An insecure-origin-redirected worklet'},
-    {URL: 'import-insecure-origin-empty-worklet-script.sub.js',
-     message: 'A same-origin worklet importing an insecure-origin script'},
-    {URL: 'import-insecure-origin-redirected-empty-worklet-script.sub.js',
-     message: 'A same-origin worklet ' +
-              'importing an insecure-origin-redirected script'}
-  ];
-  for (const scriptConfig of kScriptConfigs) {
-    promise_test(t => {
-        const kWindowURL =
-          'resources/addmodule-window.html?pipe=header(' +
-          'Content-Security-Policy, upgrade-insecure-requests)';
-        return openWindowAndExpectResult(
-          kWindowURL, scriptConfig.URL, workletType, 'RESOLVED');
-      },
-      scriptConfig.message +
-      ' should not be blocked because of upgrade-insecure-requests.');
-  }
-}
diff --git a/tests/wpt/web-platform-tests/xhr/formdata.htm b/tests/wpt/web-platform-tests/xhr/formdata.htm
index 1f69de4e281..65a5d29c671 100644
--- a/tests/wpt/web-platform-tests/xhr/formdata.htm
+++ b/tests/wpt/web-platform-tests/xhr/formdata.htm
@@ -61,6 +61,9 @@
     assert_not_equals(formData, formDataInEvent,
                       '"formData" attribute should be different from the ' +
                       'FromData object created by "new"');
+
+    formDataInEvent.append('later-key', 'later-value');
+    assert_false(formData.has('later-key'));
   }, 'Newly created FormData contains entries added to "formData" IDL ' +
      'attribute of FormDataEvent.');