.divAdLeaderBoard
{
    overflow: hidden;
    vertical-align: middle;
    text-align: center;
    width: 728px;
    height: 90px;
}
.divAdFullBanner
{
    overflow: hidden;
    vertical-align: middle;
    text-align: center;
    width: 468px;
    height: 60px;
}
.divAdWideSkyscraper
{
    overflow: hidden;
    vertical-align: middle;
    text-align: center;
    width: 160px;
    height: 600px;
}