<!DOCTYPE HTML>
<html>
<body>
  <!-- Test that element content scrolls asynchronously even when content
       has to be split into separate layers with non-scrolling content in
       between -->
  <div style="width:400px; height:500px; overflow:hidden; border:2px solid black; margin-top:-50px;">
    <div style="height:450px"></div>
    <div style="height:100px; width:200px; float:left; background:purple"></div>
    <div style="left:200px; top:-50px; height:800px; width:300px; float:left; background:yellow; position:absolute; z-index:1;"></div>
    <div style="height:100px; width:200px; float:left; background:purple; position:relative; z-index:2;"></div>
  </div>
</html>