.at-twoCol__content {
    -ms-flex-preferred-size: 600px;
    flex-basis: 600px;
    margin-bottom: 3em;
}

[class*='at-twoCol__sidebar'] {
    flex-basis: 200px;
    font-size: .8em;
}

.at-twoCol__sidebar--fake {
    display: none;
}

@media (min-width: 568px) {
    .at-twoCol__contentWrapper {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
    }

    .at-twoCol__content {
        margin: 0 3em 3em 0;
    }

    .at-twoCol__sidebar {
        margin-top: 3.8rem;
    }
}

@media (min-width: 650px) {
    .at-twoCol__contentWrapper {
        -webkit-box-pack: justify;
        -ms-flex-pack: justify;
        justify-content: space-between;
    }
}

@media (min-width: 768px) {
    .at-twoCol__content {
        -ms-flex-preferred-size: 600px;
        flex-basis: 600px;
    }

    .at-twoCol__sidebar {
        font-size: .7em;
    }
}

@media (min-width: 1024px) {
    .at-twoCol__content {
        margin-left: 3em;
    }

    .at-twoCol__sidebar--fake {
        display: block;
    }

    .at-twoCol__sidebar {
        font-size: .6em;
    }
}