Lots of depreciated and unknown attributes. Use
http://validator.w3.org/ to find these.
Code:
<!-- All are unknown attributes -->
<link rel="stylesheet type="test/css" href="css/main.css" media="screen">
<style> <!-- <= Missing attribute in style tag -->
a.three:link {color:#999999; font-size:9pt; font-face: arial; font-decoration:bold;} <!-- Not what you think it is -->
a.three:visited {color:#999999; font-size:9pt; font-face: arial;}
a.three:hover {color:white; background-color:#f51c1d; font-size:9pt; font-face: arial;}
a.three:active {color:999999; font-size:9pt; font-face: arial;}
</style>