forked from mirrors/gecko-dev
3661ed80b8
Automatic update from web-platform-tests [css-transforms] move tests from vendor-imports into the main suite (#26882) These tests all pass in Chrome, Firefox and Safari, except perspective-containing-block-dynamic-1b.html which fails in Safari: https://wpt.fyi/results/css/vendor-imports/mozilla/mozilla-central-reftests/transforms?run_id=5655021456719872&run_id=5745838489862144&run_id=5657645899841536 Part of https://github.com/web-platform-tests/wpt/issues/8615. Also clean up reftest.list for flexbox. -- wpt-commits: 29f6d1f71c6f63375aa242d11958417697abc76c wpt-pr: 26882
49 lines
1.7 KiB
HTML
49 lines
1.7 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>CSS transforms: Creating containing block for fixed positioned elements</title>
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<link rel="author" title="L. David Baron" href="https://dbaron.org/">
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<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
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<link rel="help" href="https://drafts.csswg.org/css-transforms-1/#transform-rendering">
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<link rel="help" href="https://drafts.csswg.org/css-transforms-1/#transform-property">
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<link rel="match" href="containing-block-dynamic-1-ref.html">
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<meta name="assert" content="For elements whose layout is governed by the CSS box model, any value other than none for the transform results in the creation of both a stacking context and a containing block. The object acts as a containing block for fixed positioned descendants.">
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<meta name="assert" content="The object acts as a containing block for fixed positioned descendants."
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<meta name="flags" content="dom">
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<style>
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html, body { margin: 0; padding: 0 }
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#changetransform {
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position: absolute;
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top: 100px;
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left: 100px;
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}
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#abscovered {
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position: absolute;
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top: 50px;
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left: 50px;
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background: red;
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height: 100px;
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width: 100px;
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}
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#fixedmoves {
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position: fixed;
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top: 150px;
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left: 150px;
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background: green;
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height: 100px;
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width: 100px;
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}
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</style>
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<body>
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<div id="changetransform" style="transform: translateX(4px)">
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<div id="abscovered"></div>
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<div id="fixedmoves"></div>
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</div>
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<script>
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var changetransform = document.getElementById("changetransform");
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var fixedmoves = document.getElementById("fixedmoves");
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var causeFlush = fixedmoves.offsetTop;
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changetransform.style.transform = "";
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</script>
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</body>
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