#btc{
position:absolute;
}

select{
width:100px;
}

.tooltip{
width: 200px; color:#000;
font:lighter 11px/1.3 Arial,sans-serif;
text-decoration:none;text-align:center}

.tooltip b.top{padding: 30px 8px 0;
    background: url(bt.gif) no-repeat top}

.tooltip b.center{
    background: url(bt.gif) no-repeat center}

.tooltip b.bottom{padding:3px 8px 15px;
    background: url(bt.gif) no-repeat bottom}