a.dcm {   position: relative;
   color: white;
   text-decoration: none;
   border-bottom: 1px gray dotted; /* On souligne le texte. */}
a.dcm span { display: none; }
a.dcm:hover {
   background: none;/*IE*/ z-index: 5000; 
   cursor: pointer;}
a.dcm:hover span {
   display: inline; position: absolute;
   white-space: nowrap; 
   top: -95px !important; top:274px; left: 266px; background: #8ea1ae; color: white; padding: 1px; border: 0px solid green; border-left: 0px solid green;}