footer {
    position: fixed;
    bottom: 0;
    left: 20vw;
    right: 0;
    width: 100%;
    border-top: 1px solid black;
    padding: .5rem 1rem;
    background-color: whitesmoke;
}
@media only screen and (min-width: 1024px) {
    footer {
        left: calc(100vw / 9);
    }
}

footer > * {
    grid-column: 1/-1;
}
@media only screen and (min-width: 1024px) {
    footer > * {
        grid-column: span 4;
    }
}

footer a {
    display: inline !important;
}