.span-block{display:block}.row-span{width:60%;display:-webkit-box;display:-ms-flexbox;display:flex}.col-span{-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1;width:10px}.col-span-grow-2{-webkit-box-flex:2;-ms-flex-positive:2;flex-grow:2;width:20px}