.grid-cells{display:flex;flex-wrap:wrap}.grid-cells .cell{border:1px solid rgba(0,0,0,.2);flex:0 0 50%;padding:30px}.grid-cells .cell .marker{display:block;height:9px;margin-bottom:20px;width:9px}.grid-cells .cell:nth-child(2n){border-left:0}.grid-cells .cell:nth-child(n+3){border-top:0}@media(max-width:767px){.grid-cells{flex-direction:column}.grid-cells .cell{flex:unset;padding:20px}.grid-cells .cell:nth-child(2n){border:1px solid rgba(0,0,0,.2)}.grid-cells .cell:nth-child(n+2){border-top:0}}