.two-col{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:flex-start}@media only screen and (min-width:600px){.two-col div:first-child{margin-right:10px;width:calc(50% - 10px)}.two-col div:last-child{margin-left:10px;width:calc(50% - 10px)}}