.sh-ad-slot {
    width: 100%;
}
.sh-ad-slot .sh-ad-unit img {
    display: block;
    margin-left: auto;
    margin-right: auto;
}
.sh-ad-home_top,
.sh-ad-site_header {
    margin-top: 0.75rem;
    margin-bottom: 0.75rem;
}
.sh-ad-home_mid,
.sh-ad-home_bottom {
    margin: 2rem auto;
    max-width: 72rem;
    padding-left: 1rem;
    padding-right: 1rem;
}
.sh-ad-search_results {
    margin-bottom: 1.5rem;
}