41 lines
1.2 KiB
HTML
41 lines
1.2 KiB
HTML
<!doctype html>
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<title>CSS Container Queries Test: Column-spanner depending on container in column</title>
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<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#size-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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#multicol {
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container-type: inline-size;
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width: 600px;
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columns: 2;
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column-gap: 0;
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height: 200px;
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}
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#spanner { height: 100px; }
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@container (width = 600px) {
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#spanner {
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column-span: all;
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}
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}
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</style>
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<div id="multicol">
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<div id="spanner"></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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test(() => {
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assert_equals(getComputedStyle(spanner).width, "600px");
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}, "#spanner matching container with column-width 300px, getting column-span:all");
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test(() => {
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multicol.style.width = "500px";
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assert_equals(getComputedStyle(spanner).width, "250px");
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}, "Reducing #multicol width means #spanner no longer gets column-span:all");
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test(() => {
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multicol.style.width = "";
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assert_equals(getComputedStyle(spanner).width, "600px");
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}, "Back to matching 300px and column-span:all");
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</script>
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