.advertise {
    display: block;
    height: auto;
    min-height: 600px;
    max-width: 160px;
    overflow: hidden;
    box-sizing: border-box;
    flex-shrink: 0;
}

.advertise img {
    height: 600px;
    object-fit: cover;
    width: 100%;
    max-width: 160px;
    display: block;
    margin: 0 auto;
}

/* Responsive advertising */
@media (max-width: 768px) {
    .advertise {
        min-height: 400px;
        max-width: 80px;
    }
    
    .advertise img {
        height: 400px;
        max-width: 80px;
    }
}

@media (max-width: 576px) {
    .advertise {
        min-height: 300px;
        max-width: 80px;
        padding: 5px;
    }
    
    .advertise img {
        height: 300px;
        max-width: 60px;
    }
}