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45 lines
1.3 KiB
HTML
45 lines
1.3 KiB
HTML
<!doctype html>
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<title>CSS Container Queries Test: @container with modal dialog child</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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#container {
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container-type: inline-size;
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}
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dialog {
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color: red;
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}
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@container (max-width: 200px) {
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dialog { color: green; }
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}
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@container (max-width: 100px) {
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dialog { color: lime; }
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}
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</style>
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<div id="container">
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<dialog id="dialog"></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(dialog).color, "rgb(255, 0, 0)");
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}, "#container initially wider than 200px");
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test(() => {
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container.style.width = "200px";
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assert_equals(getComputedStyle(dialog).color, "rgb(0, 128, 0)");
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}, "#container changed to 200px");
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test(() => {
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dialog.showModal();
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assert_equals(getComputedStyle(dialog).color, "rgb(0, 128, 0)");
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}, "Modal dialog still has parent as query container while in top layer");
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test(() => {
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container.style.width = "100px";
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assert_equals(getComputedStyle(dialog).color, "rgb(0, 255, 0)");
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}, "Container changes width while dialog is in top layer");
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</script>
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