<!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'>
p {
border-top: solid black;
}
</style>
</head>
<body>
<p>
The top border of this paragraph is of medium thickness.
</p>
</body>
</html>