div.container{width:960px;}.grid-1{width:80px;}.grid-2{width:160px;}.grid-3{width:240px;}.grid-4{width:320px;}.grid-5{width:400px;}.grid-6{width:480px;}.grid-7{width:560px;}.grid-8{width:640px;}.grid-9{width:720px;}.grid-10{width:800px;}.grid-11{width:880px;}.grid-12{width:960px;}