.tux-row:before,.tux-row:after{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;content:" ";display:table}.tux-row{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;padding:0;margin:0 -15px}.tux-row:after{clear:both}.tux-col{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;padding:0 15px;margin:0}@media (min-width:768px){.tux-col{float:left}.tux-span-1-of-1{width:100%}.tux-span-1-of-2{width:50%}.tux-span-1-of-3{width:33.33333333%}.tux-span-1-of-4{width:25%}.tux-span-1-of-5{width:20%}.tux-span-1-of-6{width:16.66666667%}.tux-span-1-of-7{width:14.28571429%}.tux-span-1-of-8{width:12.5%}.tux-span-1-of-9{width:11.11111111%}.tux-span-1-of-10{width:10%}.tux-span-1-of-11{width:9.09090909%}.tux-span-1-of-12{width:8.33333333%}}