34 lines
848 B
HTML
34 lines
848 B
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>CSS Containment Test: Layout containment fixed positioned descendants</title>
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<link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-layout">
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<link rel="match" href="reference/contain-layout-021-ref.html">
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<meta name=assert content="Layout containment makes an element to act as containing block for fixed positioned descendants.">
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<style>
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html {
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contain: layout;
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}
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#fixed {
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position: fixed;
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background: green;
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width: 100px;
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height: 100px;
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}
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body {
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height: 3000px;
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margin: 0px;
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}
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#spacer {
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height: 200px;
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}
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</style>
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<script>
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function runTest() {
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document.documentElement.scrollTop += 200;
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}
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</script>
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<body onload="runTest()">
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<div id="spacer"></div>
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<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
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<div id="fixed"></div>
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</body>
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