a.dc00 { position:relative;
   color:white;
   text-decoration:none;
   border-bottom:0px gray dotted; /* On souligne le texte. */}
a.dc00 span { display:none; }
a.dc00:hover {
   background:none;/*IE*/ z-index: 5000; 
   cursor:pointer;}
a.dc00:hover span {
   display:inline; position:absolute;
   white-space: nowrap; 
   top:-19px!important;top:-15px; left:0px; background:black; color:white; padding:0px; border:0px solid green; border-left:0px solid green;}