.left-col,.right-col{width:50%;min-width:180px;height:auto;box-sizing:border-box;float:left;}.left-col{padding-right:10px;}.right-col{padding-left:10px;}.img-responsive{display:block;max-width:100%;height:auto;margin:20px 0;background:#fff;padding:4px;border:1px solid #ddd;}@media(max-width:720px){.left-col,.right-col{width:100%;}.right-col{padding-left:10px;width:100%;}}.clearfix:after{content:".";display:block;clear:both;visibility:hidden;line-height:0;height:0;}