a.jmr {   position: relative;
   color: white;
   text-decoration: none;
   border-bottom: 1px gray dotted; /* On souligne le texte. */}
a.jmr span { display: none; }
a.jmr:hover {
   background: none;/*IE*/ z-index: 5000; 
   cursor: pointer;}
a.jmr:hover span {
   display: inline; position: absolute;
   white-space: nowrap; 
   top: -34px !important; top:12px; left: 02px; background: black; color: white; padding: 1px; border: 0px solid green; border-left: 0px solid green;}