.ad-block {
    width: 100%;
    margin: 30px auto;
    position: relative;
    text-align: center;
}

.ad-label {
    display: block;
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.6;
    /* margin-bottom: 5px; */
}

.ad-label.left { text-align: left; }
.ad-label.center { text-align: center; }
.ad-label.right { text-align: right; }

.ad-300x250 { max-width: 300px; aspect-ratio: 300/250; margin: 0 auto; position: relative; }
.ad-728x90 { max-width: 728px; aspect-ratio: 728/90; margin: 0 auto; position: relative; }
.ad-970x90 { max-width: 970px; aspect-ratio: 970/90; margin: 0 auto; position: relative; }
.ad-970x250 { max-width: 970px; aspect-ratio: 970/250; margin: 0 auto; position: relative; }
.ad-320x50 { max-width: 320px; aspect-ratio: 320/50; margin: 0 auto; position: relative; }

.ad-item {
    position: relative; 
    display: none;      
    width: 100%;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
    z-index: 1;
}

.ad-item.is-active {
    display: block !important;
    opacity: 1 !important;
    z-index: 2;
}

.ad-rotator {
    position: relative;
    width: 100%;
    min-height: 90px;
    overflow: hidden;
    background: transparent !important;

.ad-item img,
.ad-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border: 0;
}

@media (max-width: 768px) {
    .d-only { display: none !important; }
    .m-only { display: block !important; }

    .ad-728x90,
    .ad-970x90,
    .ad-970x250 {
        max-width: 100%;
        height: auto;
        aspect-ratio: auto;
    }
}

@media (min-width: 769px) {
    .m-only { display: none !important; }
    .d-only { display: block !important; }
}