<!doctype HTML>
<title>CSS Test Reference</title>
<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org" />
<div style="width: 100px; height: 100px; background: lightblue; will-change: transform; position: absolute">
  <div id=target style="backface-visibility: hidden">
    <div style="width: 50px; height: 50px; background: lightgray; top: 75px; position: relative"></div>
  </div>
</div>