#topnav a.home { /* current page code */
 background: #fff; 
 color: #074070;
 text-decoration: none; 
 border-top: 2px solid #fff;
 border-bottom: 3px solid #fff;
}
* html #topnav a.home {
}
* html #topnav a:hover.home {
 background: #fff; 
}
*:first-child+html #topnav a:hover.home {
 background: #fff; 
}