.tooltip{
width:72px;
text-decoration:none;
text-align:center;
}

.tooltip span.top {
display:block;
text-align:center;
padding:20px 10px 10px 10px;
background:url(../../imagens/bg_tip.gif) no-repeat top;
font-size:12px;
letter-spacing:-1px;
font-weight:bold;
color:#CC0000;
}

.tooltip .bottom {
display:block;
height:0;
width:0;
overflow:hidden;
}