body {
}
.STabKey
{
    background-image:url('../ImagesFA/KeyTab3.png');
    background-position:bottom center;
    background-repeat:no-repeat;
}
.STabKey:hover
{
    background-image:url('../ImagesFA/KeyTab3a.png');
    background-position:bottom center;
    background-repeat:no-repeat;
}