58 lines
1.5 KiB
HTML
58 lines
1.5 KiB
HTML
<!doctype html>
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<title>CSS Container Queries Test: Style container for pseudo elements</title>
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<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#query-container">
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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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#c1 {
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--theme: green;
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}
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@container style(--theme: green) {
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#c1::before {
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content: "";
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color: green;
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display: block;
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height: 100px;
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}
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}
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</style>
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<div id="c1"></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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let style = getComputedStyle(c1, "::before");
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assert_equals(style.color, "rgb(0, 128, 0)");
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assert_equals(style.height, "100px");
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}, "::before pseudo element querying style() of originating element");
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</script>
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<style>
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#c2 {
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--theme: red;
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}
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#c2::before { color: red }
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#c2.green {
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--theme: green;
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}
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@container style(--theme: green) {
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#c2::before {
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content: "";
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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="c2"></div>
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<script>
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test(() => {
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let style = getComputedStyle(c2, "::before");
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assert_equals(style.color, "rgb(255, 0, 0)");
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}, "::before pseudo element not matching style()");
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test(() => {
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c2.className = "green";
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let style = getComputedStyle(c2, "::before");
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assert_equals(style.color, "rgb(0, 128, 0)");
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}, "::before pseudo element matching style() query after class change");
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</script>
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