.ad-region {
    display: block;
    width: 100%;
    max-width: 970px;
    margin: 1.25rem auto;
    min-height: 90px;
    overflow: hidden;
    text-align: center;
}

.ad-region.ad-slot--empty {
    display: none;
    min-height: 0;
    margin: 0;
}

.ad-region .adsbygoogle {
    margin: 0 auto;
}