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<html>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="/tests/gfx/layers/apz/test/mochitest/apz_test_utils.js"></script>
<style>
body {
margin: 0;
padding: 20;
background-color: blueviolet;
}
button {
margin: 0;
}
</style>
<body>
<button id="btn">Click me</button>
</body>
<script>
// Silence SimpleTest warning about missing assertions by having it wait
// indefinitely. We don't need to give it an explicit finish because the
// entire window this test runs in will be closed after the main browser test
// finished.
SimpleTest.waitForExplicitFinish();
</script>
</html>