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<!DOCTYPE html>
<head>
<title>CSS Reference File</title>
<link rel="author" title="Chris Rebert" href="http://chrisrebert.com" />
<style type="text/css">
#greensquare {
background-color: green;
position: absolute;
left: 50%;
width: 100px;
height: 100px;
}
</style>
</head>
<body>
<p>Test passes if there is a solid green square and <strong>no red</strong>.</p>
<div id="greensquare"></div>
</body>
</html>