.tooltip{
	width:200px; 
	color:#999;
	font-size:13px;
	font-weight:bold;
	text-decoration:none;
	text-align:center;
	margin:0;
	padding:0;
}
.tooltip span.top{
    background: url(../img/bt-trans.png) top left no-repeat;
	padding:18px 0 1px 0;
}

.tooltip b.bottom{padding:0 0 10px 0;color: #111;
    background: url(../img/bt-trans.png) bottom left no-repeat;
	margin:0;
}