.tooltip{
width: 100px; color:#000;
font:lighter 10px/1.3 Arial,sans-serif;
text-decoration:none;text-align:center}

.tooltip span.top{padding: 10px 18px 1;
	background: url(bt1small.gif) no-repeat top}

.tooltip b.bottom{padding:1px 1px 20px;color: #548912;
    background: url(bt1small.gif) no-repeat bottom}