.xstooltip
{
    visibility: hidden;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    font: normal 8pt sans-serif;
    padding: 3px;
    align: left;
    border: solid 1px;
    background-repeat: repeat;
    background-image: url(../images/grey.gif);
}