/* simple css-based tooltip */ 
div.tooltip { 
    background-color:#000; 
    border:1px solid #fff; 
    padding:10px 15px; 
    width:200px; 
    display:none; 
    color:#fff; 
    text-align:left; 
    font-size:12px; 
 
    /* outline radius for mozilla/firefox only */ 
    -moz-box-shadow:0 0 10px #000; 
    -webkit-box-shadow:0 0 10px #000; 
}