a:hover：鼠标移上去变色

<style type="text/css">
<!--
a:link {
 color: #000000;
 text-decoration: none;
}
a:visited {
 color: #333333;
 text-decoration: none;
}
a:hover {
 color: #CC0000;
 text-decoration: none;
}
-->
</style>