Ting-Yu Lin
071f7c450f
The bug happens when we reconstruct the abspos element inside the IB-split block-wrapper where the inline element is an absolute containing block. In `GetAbsoluteContainingBlock()`, when `absPosCBCandidate` is the `MozBlockInsideInlineWrapper`, redirect the candidate to the first IB-split sibling that is the absolute containing block. Otherwise, the function will continue going up the parent chain until it finds `nsCanvasFrame` (the initial containing block). Differential Revision: https://phabricator.services.mozilla.com/D303124
37 lines
1.0 KiB
HTML
37 lines
1.0 KiB
HTML
<!DOCTYPE html>
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<title>CSS Positioned Test: an absolutely positioned element whose containing block is an inline element resolves its percentage width correctly after revealing itself via display:block</title>
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<link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
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<link rel="author" title="Mozilla" href="https://www.mozilla.org/">
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<link rel="help" href="https://drafts.csswg.org/css-position-3/#absolute-cb">
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<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1978619">
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<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
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<style>
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#absCB {
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position: relative;
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}
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#abs {
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position: absolute;
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width: 80%;
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background: red;
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display: none;
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}
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#green {
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width: 100px;
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height: 100px;
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background: green;
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}
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</style>
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<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
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<span id="absCB">
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<div>
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<div id="abs"><div id="green"></div></div>
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</div>
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</span>
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<script>
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document.documentElement.offsetTop;
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abs.style.display = "block";
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</script>
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