.wp-block-chm-gutenberg-image-grid-item picture {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.wp-block-chm-gutenberg-image-grid-item picture img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.wp-block-chm-gutenberg-image-grid-item-title {
    z-index: 10;
}

.wp-block-chm-gutenberg-image-grid-item:nth-last-child(1),
.wp-block-chm-gutenberg-image-grid-item:nth-last-child(2) {
    margin-bottom: 0 !important;
}