45 lines
1.5 KiB
HTML
45 lines
1.5 KiB
HTML
<!DOCTYPE html>
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<title>CSS Container Query Test: named style container query change with inherited custom property</title>
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<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#container-rule">
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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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#container {
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container-name: container;
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}
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.match {
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--match: true;
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}
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#inner {
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color: red;
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}
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@container container style(--match: true) {
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#inner {
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color: green;
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}
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}
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</style>
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<div id="container">
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<div id="outer">
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<div id="inner"></div>
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</div>
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</div>
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<script>
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setup(() => assert_implements_style_container_queries());
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test(() => {
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assert_equals(getComputedStyle(inner).color, "rgb(255, 0, 0)");
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assert_equals(getComputedStyle(inner).getPropertyValue("--match"), "");
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assert_equals(getComputedStyle(outer).getPropertyValue("--match"), "");
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assert_equals(getComputedStyle(container).getPropertyValue("--match"), "");
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}, "Pre-conditions");
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test(() => {
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container.className = "match";
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assert_equals(getComputedStyle(inner).color, "rgb(0, 128, 0)");
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assert_equals(getComputedStyle(inner).getPropertyValue("--match"), "true");
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assert_equals(getComputedStyle(outer).getPropertyValue("--match"), "true");
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assert_equals(getComputedStyle(container).getPropertyValue("--match"), "true");
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}, "Changed --match inherits down descendants and affects container query");
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</script>
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