a  {text-decoration: none;}
a:hover {background-color: #2B2E21;color:#fff;}
a:link span{display: none;}
a:visited span{display: none;}
a:hover span {
  position: absolute;
  margin:15px 0px 0px 20px;
  background-color: silver;
  max-width:250;
  padding: 2px 10px 2px 10px;
  border: 1px solid #C0C0C0;
  font: smaller;
  color: #000;
  text-align:left;
  display: block;}
  a.anchor {
  color:red; 
  background-color: white;}