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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>MathML lengths (reference)</title>
</head>
<body>
<p>Test passes if there is a green square and no red.</p>
<div>
<div id="red" style="position: absolute; width: 200px; height: 200px; background: green;">
</div>
</div>
</body>
</html>