.ads_leaderboard
{
    margin-right: auto;
    margin-left: auto;
    width: 728px;
    height: 90px;
    background-color: White;
    margin-top: 10px;
    overflow:hidden;

}
.ads_square
{
    
    width:200px;
    height:200px;
    background-color:White;
    overflow:hidden;
    
}
.ads_banner
{
    
    width:100%;
    height:60px;
    background-color:White;
    text-align:center;
    overflow:hidden;
  
}