<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title></title>
<style type='text/css'>
body {
font-size: 40px;
}
p {
margin: 0;
}
p#sans-serif {
font-family: sans-serif;
}
</style>
</head>
<body>
<p id='sans-serif'>
This is sans-serif.
</p>
</body>
</html>
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