<!DOCTYPE html>
<!-- This test assumes that the document is 800px wide by 1000px high,
     as documented in the readme.  In particular, it assumes that
     height > width. -->
<html style="margin: 0; padding: 0; border: none; overflow: hidden">
  <body style="margin: 0; padding: 0; border: none">
    <div style="position: fixed; height: 100%; background: green">
      <img src="solidblue.png" style="height: 100%; visibility: hidden;">
    </div>
  </body>
</html>