.at-textColumns__columns {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    margin: 0 0px;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
}

.at-textColumns__column {
    margin-bottom: 1em;
    padding: 0 5px;
}

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

@media screen and (min-width: 650px) {
    .at-textColumns__column--2 {
        width: 50%;
    }
}

@media screen and (min-width: 768px) {
    .at-textColumns__column--3 {
        width: 50%;
    }

    .at-textColumns__column--3:last-child {
        width: 100%;
    }
}

@media screen and (min-width: 1024px) {
    .at-textColumns__column--3,
    .at-textColumns__column--3:last-child {
        width: 33.333%;
    }
}