.tooltip{
	width: 200px; color:#000;
	font:lighter 11px/1.3 Arial,sans-serif;
	text-decoration:none;text-align:center
}
.tooltip span.top{padding: 30px 8px 0;
    background: url(../images/bt.gif) no-repeat top
}
.tooltip b.bottom{padding:3px 8px 15px;color: #548912;
    background: url(../images/bt.gif) no-repeat bottom
}