<!DOCTYPE html>
<title>backface visibility: hidden does not apply to child pseudo-stacking context descendants, even when animation is present</title>
<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
<link rel="help" href="http://www.w3.org/TR/css-transforms-1/#transform-property">
<link rel="help" href="http://www.w3.org/TR/css-transforms-2/#propdef-backface-visibility">
<link rel="match" href="backface-visibility-hidden-004-ref.html">

<p>The test passes if there is a green rectangle and no red</p>
<style>

  div {
    width: 100px;
    height: 100px;
  }
  @keyframes spin {
    from { transform: rotateY(180deg); }
    to { transform: rotateY(180deg); }
  }
  .target {
    animation: 10000s linear 0s 1 forwards spin;
  }
</style>
<div class=target style="backface-visibility: hidden">
  <div style="background: green; isolation: isolate"></div>
</div>