#wrapper{margin-left:auto;margin-right:auto;max-width:960px}.column1{float:left;width:50%;margin:auto;padding:20px}.column2{float:left;width:50%;margin:auto;padding:20px}.div{position:fixed;bottom:0;right:0}.row:after{content:"";display:table;clear:both}@media screen and (max-width:680px){.column1{width:100%}@media screen and (max-width:680px){.column2{width:100%}