.gallery-3-images {
    margin: 3px -4px;
}

.gallery-3-images > .row {
    margin: -4px 0;
}

.gallery-3-images .image {
    padding: 4px;
}

.gallery-3-images  .image .image-copyright {
    position: absolute;
    bottom: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.8);
    padding: 5px 10px;
    font-size: 12px;
    margin: 0;
}