.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(/wp-content/plugins/BubbleTooltips/bt.gif) no-repeat top}

/* incl. linkcolor */
.tooltip b.bottom{
padding:3px 8px 15px;
color: #556B2F;
background: url(/wp-content/plugins/BubbleTooltips/bt.gif) no-repeat bottom}