.tooltip { width: 150px; color:#fff; font-size: 11px; text-decoration:none; text-align:center; }
.tooltip span.top{padding: 30px 7px 0; background: url(bt1.gif) no-repeat top; }
.tooltip b.bottom{padding:3px 8px 10px; color: #ffff00; background: url(bt1.gif) no-repeat bottom; }