a.info {
   position: relative;
   color: white;
   text–decoration: none;
}
a.info span {
   visibility: hidden;
   display: none;
}
a.info:hover {
   background: none;
   z–index: 1;
}
a.info:hover span {
   visibility : visible;
   display: block;
   position: absolute;
   white–space: nowrap;
   top: 20px;
   left: 10px;
   background: black;
   color: white;
   padding: 3px;
   border: 1px solid black;
   border–left: 4px solid black;
   z-index: 500;
}