chromium/third_party/blink/web_tests/fast/multicol/composited-relpos-overlapping-will-change.html

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<p>The word 'PASS' should be seen <em>twice</em> below.  The second PASS is not overlapping the yellow because it is composited with the first one, and hence not fragmented.</p>
<div style="-webkit-columns:3; -webkit-column-gap:1em; column-fill:auto; width:35em; height:13em; line-height:2em; orphans:1; widows:1;">
    <div style="will-change:transform; position:absolute; left:0; right:0; height:8em; background:yellow;"></div>
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    <div style="position:relative; margin:0.5em;">PASS<br>PASS</div>
</div>