chromium/third_party/google-closure-library/closure/goog/ui/iframemask_test_dom.html

<!--
Copyright The Closure Library Authors. All Rights Reserved.

Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<style type="text/css">
 #popup {
  position: absolute;
  left: 100px;
  top: 900px; /* so that you can see unit test failures */
  width: 300px;
  height: 400px;
}
</style>
<div id="sandbox">
</div>