<!DOCTYPE HTML>
<html reftest-async-scroll
      reftest-displayport-x="0" reftest-displayport-y="0"
      reftest-displayport-w="800" reftest-displayport-h="2000"
      reftest-async-scroll-x="0" reftest-async-scroll-y="400">
<body style="overflow:hidden; height:3000px">
  <!-- Test that position:fixed content covered by scrolling content gets rendered
       properly -->
  <div style="position:fixed; background:blue; top:300px; left:0; width:500px; height:200px; z-index:1"></div>
  <div style="position:absolute; background:black; top:200px; left:0; width:500px; height:400px; z-index:2"></div>
</body>
</html>