69 lines
2.8 KiB
HTML
69 lines
2.8 KiB
HTML
<!doctype html>
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<title>@container: originating element container for pseudo elements</title>
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<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#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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.container { container-type: inline-size; }
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#target { display: list-item; }
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@container (max-width: 200px) {
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#target::before { content: "PASS"; color: green; }
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#target::after { color: green; }
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#target::marker { color: green; }
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#target::first-line { color: green; }
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#target::first-letter { color: green; }
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}
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@container ((min-width: 300px) and (max-width: 350px)) {
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#outer::first-line { color: green; }
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#outer::first-letter { color: green; }
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}
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dialog::backdrop { background-color: lime; }
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@container (max-width: 100px) {
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dialog::backdrop { background-color: green; }
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}
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</style>
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<div style="width: 400px" class="container">
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<div style="width: 300px" class="container">
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<div id="target" class="container" style="width: 200px">First-line</div>
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<dialog id="dialog" class="container" style="width: 100px"></dialog>
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</div>
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<div style="width: 400px" class="container">
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<div id="outer" style="width: 300px" class="container">
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<div class="container" style="width: 200px">First-line</div>
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</div>
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</div>
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<script>
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setup(() => assert_implements_size_container_queries());
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const green = "rgb(0, 128, 0)";
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const lime = "rgb(0, 255, 0)";
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test(() => {
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assert_equals(getComputedStyle(target, "::before").color, green);
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}, "Originating element container for ::before");
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test(() => {
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assert_equals(getComputedStyle(target, "::after").color, green);
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}, "Originating element container for ::after");
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test(() => {
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assert_equals(getComputedStyle(target, "::marker").color, green);
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}, "Originating element container for ::marker");
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test(() => {
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assert_equals(getComputedStyle(target, "::first-line").color, green);
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}, "Originating element container for ::first-line");
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test(() => {
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assert_equals(getComputedStyle(target, "::first-letter").color, green);
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}, "Originating element container for ::first-letter");
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test(() => {
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assert_equals(getComputedStyle(outer, "::first-line").color, green);
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}, "Originating element container for outer ::first-line");
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test(() => {
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assert_equals(getComputedStyle(outer, "::first-letter").color, green);
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}, "Originating element container for outer ::first-letter");
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test((t) => {
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t.add_cleanup(() => dialog.close());
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assert_equals(getComputedStyle(dialog, "::backdrop").backgroundColor, lime, "::backdrop not rendered");
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dialog.showModal();
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assert_equals(getComputedStyle(dialog, "::backdrop").backgroundColor, green, "::backdrop rendered");
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}, "Originating element container for ::backdrop");
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</script>
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