.row{zoom:1}.row:after,.row:before{content:"";display:table}.row:after{clear:both}.col{display:block;float:left;margin:1% 0}.span-2-of-2{width:100%}.span-1-of-2{width:50%}.span-3-of-3{width:100%}.span-2-of-3{width:66.66%}.span-1-of-3{width:33.33%}.span-4-of-4{width:100%}.span-3-of-4{width:75%}.span-2-of-4{width:50%}.span-1-of-4{width:25%}