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<!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="1800">
<!-- This is a test where we set the async-scroll position so that it
     extends outside the displayport, but also have some fixed-position
     elements in the mix. In particular, the purple element is below
     (in z-order) the main scrolling content and should not be made visible
     while checkerboarding; the checkerboarding code should cover it up
     with the appropriate background color. -->
<body style="background-color: green; height: 5000px; overflow:hidden">
  <div style="position:fixed; left: 0px; top: 0px; width: 100px; height: 500px; background-color: purple; z-index: -1"></div>
  <div style="position:absolute; left: 0px; top: 500px; background-color: yellow; width: 100px; height: 4500px"></div>
  <div style="position:fixed; left: 10px; top: 10px; width: 10px; height: 10px; background-color: blue"></div>
</body>