.wh960{width:960px;}
.wh450{width:450px;}

#nav {width:660px;text-align:center;}
#nav ul{width:660px;height:35px;line-height:35px;padding:0;}
#nav li {padding:0;list-style: none;display:inline;}
#nav a {float:left;overflow:hidden;width:100px;height:35px;color:#ffffff;text-decoration:none;}
#nav a:hover {text-decoration:underline;background-color:#cd121b}