#dhtmltooltip{
position: absolute;
width: 150px;
border: 2px solid black;
background-color: lightyellow;
/*visibility: hidden;*/
display:none;
z-index: 1;
/*Remove below line to remove shadow. Below line should always appear last within this CSS*/
filter: progid:DXImageTransform.Microsoft.Shadow(color=gray,direction=135);
}