a.csuz { position: relative;
   color: white;
   text-decoration: none;
   border-bottom: 0px gray dotted; /* On souligne le texte. */}
a.csuz span { display: none; }
a.csuz:hover {
   background: none;/*IE*/ z-index: 5000; 
   cursor: pointer;}
a.csuz:hover span {
   display: inline; position: absolute;
   white-space: nowrap; 
   top: +5px !important; top:+42px; left: 44px; background: black; color: white; padding: 0px; border: 0px solid green; border-left: 0px solid green;}