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45 lines
1.5 KiB
HTML
45 lines
1.5 KiB
HTML
<!doctype html>
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<title>CSS Container Queries Test: Nested top layer elements and @container</title>
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<link rel="help" href="https://drafts.csswg.org/css-contain-3/#container-queries">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="support/cq-testcommon.js"></script>
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<style>
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dialog { color: red; }
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#container { width: 100px; }
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#container, #outer { container-type: inline-size; }
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@container (min-width: 200px) {
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#outer { width: 400px; color: lime; }
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}
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@container (min-width: 400px) {
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#inner { color: green; }
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}
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</style>
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<div id="container">
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<dialog id="outer">
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<dialog id="inner"></dialog>
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</dialog>
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</div>
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<script>
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setup(() => assert_implements_container_queries());
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test(() => {
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assert_equals(getComputedStyle(outer).color, "rgb(255, 0, 0)");
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assert_equals(getComputedStyle(inner).color, "rgb(255, 0, 0)");
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}, "Dialogs initially not matching for container queries");
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test(() => {
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container.offsetTop;
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outer.showModal();
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inner.showModal();
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assert_equals(getComputedStyle(outer).color, "rgb(255, 0, 0)");
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assert_equals(getComputedStyle(inner).color, "rgb(255, 0, 0)");
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}, "Dialogs still not matching after showModal");
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test(() => {
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container.offsetTop;
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container.style.width = "200px";
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assert_equals(getComputedStyle(outer).color, "rgb(0, 255, 0)");
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assert_equals(getComputedStyle(inner).color, "rgb(0, 128, 0)");
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}, "@container queries start matching");
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</script>
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