#nafcase {
   position:relative;
   overflow:hidden;
   height:250px;
   width:600px;
}

#nafcase a {
   font-weight:bold;
   font-size:120%;
}

.nafdiv {
   position:absolute;
   overflow:hidden;
   top:250px;
   left:0;
   height:250px;
   width:600px;
}