.tooltip
{
  width: 200px;
  color: #000;
  font:lighter 11px/1.3 Arial,sans-serif;
  text-decoration:none;
}

.tooltip span.top
{
  padding: 30px 8px 0;
  background: url(../img2/bt.gif) no-repeat top
}

.tooltip b.bottom
{
  padding: 3px 8px 15px;
  color: #548912;
  background: url(../img2/bt.gif) no-repeat bottom
}