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Test Info:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<head>
<title>CSS Test: Font-family, fallback mechanism</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
<link rel="match" href="font-family-rule-001-ref.html" />
<meta name="assert" content="Unknown or unavailable fonts fallback to the default font family. The default font family varies and depends on user agent." />
<style type="text/css">
div
{
font-family: UnknownFont;
}
</style>
</head>
<body>
<p>PREREQUISITE: Operating system cannot have a font named "UnknownFont" installed. If it is installed remove it to verify this test.</p>
<p>Test passes if there is a letter "X" below.</p>
<div>X</div>
</body>
</html>