.product-img {
    position: relative;
}

.product-img a {
    position: relative;
    widows: 100%;
    height: 100%;
    display: block;
}

.product-img img {
    max-width: 100%;
    width: auto;
    height: auto;
    position: inherit;
    top: 50%;
    transform: translateY(-50%);
    max-height: 290px;
}

@media screen and (max-width: 1200px) {
    .product-img img {
        max-height: 200px;
    }
}

@media screen and (max-width: 991px) {
    .product-img img {
        max-height: 280px;
    }
}

.product-img picture {
    position: relative;
}