<!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="50">
<body style="overflow:hidden; height:3000px">
  <!-- Test that position:fixed content stays fixed when we async-scroll -->
  <div style="position:fixed; background:blue; top:0; left:0; width:200px; height:100px"></div>
</body>
</html>