testing/web-platform/tests/css/css-transforms/backface-visibility-hidden-child-will-change-transform.html


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<!DOCTYPE html>
<link rel="help" href="http://www.w3.org/TR/css-transforms-2/#backface-visibility-property">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div style="background: green; width: 100px">
  <div style="transform: rotateY(180deg); backface-visibility: hidden">
    <div style="background: red; will-change: transform; height: 100px"></div>
  </div>
</div>