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<!DOCTYPE html>
<html>
<head>
<title>CSS Reference File</title>
<link rel="author" title="Rebecca Hauck" href="mailto:rhauck@adobe.com">
<style>
body {
margin: 0;
}
#green-square {
position: absolute;
top: 50px;
left: 10px;
width: 240px;
height: 240px;
background-color: green;
}
</style>
</head>
<body>
<p>The test passes if there is green square and no red.</p>
<div id="green-square"></div>
</body>
</html>