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33 lines
890 B
HTML
33 lines
890 B
HTML
<!doctype html>
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<title>CSS Container Queries Test: Absolute positioned canvas as size container for focusable child with display</title>
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<link rel="help" href="https://drafts.csswg.org/css-contain-3/#size-container">
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<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
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<style>
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@supports (container-type: size) {
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canvas:focus-within {
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background-color: green;
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}
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canvas {
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display: block;
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position: absolute;
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width: 100px;
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height: 100px;
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container-type: size;
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}
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#target { display: none; }
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@container (width = 100px) {
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#target { display: block; }
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}
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}
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</style>
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<p>Test passes if there is a filled green square.</p>
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<canvas>
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<div id="target" tabIndex="1"></div>
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</canvas>
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<script>
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requestAnimationFrame(()=> {
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requestAnimationFrame(()=> {
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target.focus();
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});
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});
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</script>
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