CSS Font Weight
HTML
<html>
<head>
<link type="text/css" rel="stylesheet" href="style.css">
</head>
<body>
<p>Etiam convallis tellus vitae nisi blandit imperdiet id non sapien.</p>
<ul>
<li>Vestibulum ultrices est a neque elementum</li>
</ul>
</body>CSS
p { font-weight: 100; }
ul{ font-weight: bolder; }