.tooltip {
    display:none;
    position:absolute;
    margin-left:10px;
    padding-left: 10px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-right: 10px;
    width:160px;
    background: url(/images/tooltip/tooltip_background.gif) 0 0 no-repeat; 
    color: white;    
    z-index: 10;
}  

.tipicon {
    cursor:pointer;
	position:relative;
	margin-left:10px;
	z-index: 9;
}