testing/web-platform/tests/css/filter-effects/will-change-blur-filter-under-clip.html


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<!DOCTYPE html>
<link rel="help" href="https://drafts.fxtf.org/filter-effects-1/#FilterProperty">
<link rel="help" href="https://crbug.com/1228817">
<link rel="match" href="reference/green-100x100.html">
<div style="width: 100px; height: 100px; overflow: hidden">
  <div style="width: 200px; height: 200px; margin-top: -50px; margin-left: -50px;
              background: green; filter: blur(10px); will-change: filter"></div>
</div>