aside {
    float: right;
    margin-inline-start: 1rem;
    box-shadow: var(--edge-highlight);
    border-radius: var(--rounded-corner);
    background-color: var(--primary-color-alpha);
    padding: 1rem;
    width: 30%;

    @media only screen and (max-width: 720px) {
        float: none;
        margin-inline-start: 0;
        width: 100%;
    }
}