.product-image-gallery {
    width: 300px; /* Adjust the width as needed */
    height: 600px; /* Adjust the height as needed */
    overflow-y: auto;
    background-color: #fff;
    padding: 10px; /* Optional: add some padding */
}

.product-gallery-item {
    display: block;
    margin-bottom: 10px; /* Adjust the margin as needed */
}

.product-gallery-item img {
    width: 100%;
    display: block;
}