.image-gallery .gallery-thumbnail {
    cursor: pointer;
    aspect-ratio: 3 / 2;
    object-fit: cover;
    width: 100%;
    border-radius: 3px;
    box-shadow: 0 4px 16px rgba(30,77,126,.10);
    transition: transform .25s, box-shadow .25s;
}

.image-gallery .gallery-thumbnail:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(30,77,126,.18);
}