.balloonstyle
{
    position: absolute;
    top: -500px;
    left: 0;
    padding: 5px;
    visibility: hidden;
    border: 1px solid black;
    font: normal 12px Verdana;
    line-height: 18px;
    z-index: 100;
    background-color: white;
    width: 200px; 
    /*Remove below line to remove shadow. Below line should always appear last within this CSS*/
    filter: progid:DXImageTransform.Microsoft.Shadow(color=gray,direction=135,Strength=5);
}

#arrowhead
{
    z-index: 99;
    position: absolute;
    top: -500px;
    left: 0;
    visibility: hidden;
}