.tp b {behavior:url(scripts/hover.htc);}
.tp .hover {color: red;}
.tp .hover span {
   background: #ffffff;
   color: #000000;
   display: block;
   padding: 7px;
   position: absolute;
   top: -5px;
   left: 10px;
   z-index:10;
   text-align: left;
   width:180px;
   border: 1px solid #999999;
}