#tetracase {
   position:relative;
   overflow:hidden;
   height:125px;
   width:1190px;
}

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

.tetradiv {
   position:absolute;
   overflow:hidden;
   top:0;
   left:1190px;
   width:390px;
   height:125px;
}

.tetradiv div {
   border:1px solid #c99;
   background:linen;
   padding:5px;
   overflow:hidden;

}