/*.at-twoColumns {*/
/*   margin-bottom: 3em;*/
/*}*/

.at-twoColumns + .at-twoColumns {
    padding-top: 0;
}

.at-twoColumns__column {
    margin-bottom: 2em;
}

.at-twoColumns__column:last-child {
    margin-bottom: 0;
}

@media screen and (min-width: 550px) {
    .at-twoColumns__column {
        float: left;
        width: calc(50% - 1em);
        margin-right: 2em;
        margin-bottom: 0;
    }

    .at-twoColumns__column:last-child {
        margin-right: 0;
    }
}