a.info 
{ 
    position:relative; 
    z-index:24; background-color:#ddd; 
    color:#000; 
    text-decoration:none 
} 

a.info:hover {z-index:25; background-color:#ff0} 

a.info span{display: none} 

a.info:hover span 
{ 
    display:block; 
    position:absolute; 
    top:2em; left:2em; width:19em; height:7em; 
    border:1px solid #0cf; 
    background-color:#555; color:#fff; 
}
{
    position:relative;
    z-index:24; background-color:#ddd;
    color:#000;
    cursor: hand;
}