.custom-thumbs{
    max-height: 200px;
    max-width: 200px;
    height: 200px;
    width: 200px;
    border: 1px solid #fff;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}