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chromium/third_party/blink/web_tests/external/wpt/html/rendering/replaced-elements/embedded-content/resources/tall.html 

<!DOCTYPE html>
<body style="background: blue">
  <div style="position: fixed; left: 0; top: 0; width: 100%; height: 100px; background: yellow"></div>
  <div style="position: fixed; left: 0; bottom: 0; width: 100%; height: 100px; background: green"></div>
  <div style="height: 2000px"></div>
</body>