.demo-container .row{margin-bottom:20px}.demo-container .row:last-child{margin-bottom:0}.demo-container .grid-cell{border-radius:4px;height:36px;background:hsla(0,0%,100%,.8)}.demo-container.is-stripe .col:nth-child(2n) .grid-cell{background:rgba(0,0,0,.54)}