.xtip 
{    
    visibility: hidden; 
    position: absolute; 
    top: 0;  
    left: 0; 
    z-index: 2;
    font: normal 8pt Arial, Helvetica, sans-serif; 
}
.art_title { background:#000099; font-size: 12px; color:#FFFFFF; font-weight: bold; padding-left:10px;}
.style6 { background:#D6D6DA;font-size: 12px; color: #000000; }
.style7 { background:#FFFF66;font-size: 12px; color: #000000; }
.imtooltip { background:#D6D6DA; }