.tooltip{
width:200px; color:#dcdcdc;
font:bold 12px/1.3 Arial,sans-serif;
text-decoration:none; text-align:center;}

.tooltip span.top{padding:10px 5px 0;
    background:url(bt.gif) no-repeat top;}

.tooltip b.bottom{padding:3px 8px 5px; color:#548912;
font:10px/1.3 Arial,sans-serif;
    background:url(bt.gif) no-repeat bottom;}