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LibWeb: Implement CSS 'contain' property

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This commit is contained in:
Psychpsyo
2025-01-18 20:39:26 +01:00
committed by Sam Atkins
parent c53c781745
commit 67ed676831
Notes: github-actions[bot] 2025-01-28 11:25:39 +00:00 
Author: https://github.com/Psychpsyo
Commit: https://github.com/LadybirdBrowser/ladybird/commit/67ed6768313
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3296
Reviewed-by: https://github.com/AtkinsSJ ✅
154 changed files with 4200 additions and 117 deletions
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28
Tests/LibWeb/Ref/input/wpt-import/css/css-contain/contain-layout-006.html Normal file
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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Containment Test: Layout containment absolutely positioned descendants</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-layout">
<link rel="match" href="../../../../expected/wpt-import/css/reference/ref-filled-green-100px-square.xht">
<meta name=assert content="Layout containment makes an element to act as containing block for absolutely positioned descendants.">
<style>
#contain-layout {
contain: layout;
width: 100px;
height: 100px;
background: red;
}
#abspos {
position: absolute;
bottom: 0;
right: 0;
background: green;
width: 100px;
height: 100px;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="contain-layout">
<div id="abspos"></div>
</div>