#advertiser-logos img,#publisher-logos img{-webkit-filter:grayscale(100%);filter:grayscale(100%)}#advertiser-logos div:nth-child(3n+2)>img,#publisher-logos div:nth-child(3n+2)>img{display:block;margin:0 auto}@media (min-width:1800px){#advertiser-logos img,#publisher-logos img{max-width:200px}}