diff --git a/components/layout/block.rs b/components/layout/block.rs
index fa91b847b20..0b10ef39000 100644
--- a/components/layout/block.rs
+++ b/components/layout/block.rs
@@ -1020,8 +1020,12 @@ impl BlockFlow {
self.base.position.size.block = cur_b;
}
- // Store the current set of floats in the flow so that flows that come later in the
+ // Translate the current set of floats back into the parent coordinate system in the
+ // inline direction, and store them in the flow so that flows that come later in the
// document can access them.
+ floats.translate(LogicalSize::new(writing_mode,
+ self.fragment.inline_start_offset(),
+ Au(0)));
self.base.floats = floats.clone();
self.adjust_fragments_for_collapsed_margins_if_root(layout_context);
} else {
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 4285757014f..be3c9a95e51 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -1608,6 +1608,18 @@
"url": "/_mozilla/css/floated_table_with_margin_a.html"
}
],
+ "css/floats_inline_margins_a.html": [
+ {
+ "path": "css/floats_inline_margins_a.html",
+ "references": [
+ [
+ "/_mozilla/css/floats_inline_margins_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/floats_inline_margins_a.html"
+ }
+ ],
"css/floats_margin_collapse_a.html": [
{
"path": "css/floats_margin_collapse_a.html",
@@ -8336,6 +8348,18 @@
"url": "/_mozilla/css/floated_table_with_margin_a.html"
}
],
+ "css/floats_inline_margins_a.html": [
+ {
+ "path": "css/floats_inline_margins_a.html",
+ "references": [
+ [
+ "/_mozilla/css/floats_inline_margins_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/floats_inline_margins_a.html"
+ }
+ ],
"css/floats_margin_collapse_a.html": [
{
"path": "css/floats_margin_collapse_a.html",
diff --git a/tests/wpt/mozilla/tests/css/floats_inline_margins_a.html b/tests/wpt/mozilla/tests/css/floats_inline_margins_a.html
new file mode 100644
index 00000000000..19b4910e6e0
--- /dev/null
+++ b/tests/wpt/mozilla/tests/css/floats_inline_margins_a.html
@@ -0,0 +1,27 @@
+
+
+
+
+
+
+
+
+ submitted
+ x
+
+