.span_tooltip {
    border-bottom: 1px dotted
}

.div_tooltip_text {
    visibility: hidden; 
    position: absolute; 
    top: 0;  
    left: 0; 
    z-index: 2; 
    background-color:#F9F7DD;
	font-family:verdana;
	font-size:8pt;
    padding: 3px; 
    border-color:#3D0000;
    border-width:2px;
    border-style:solid;
    opacity:0.85;
    filter:alpha(opacity=85);
}