.row{display:flex;flex-wrap:wrap;justify-content:space-between}.col-1-2{width:calc(50%)}.col-1-3{width:calc(33.33333333% - 30px)}.col-1-4{width:calc(25%)}@media screen and (max-width:1000px){.col-1-2,.col-1-3,.col-1-4{width:calc(100%)};}