.mpx-gallery .wp-block-gallery {
  gap: 1rem !important;
  --wp--style--unstable-gallery-gap: 1rem;
}
.mpx-gallery figure.wp-block-image {
  aspect-ratio: 4/3;
  border-radius: 5px;
  overflow: hidden;
}
.mpx-gallery figure.wp-block-image img {
  object-fit: cover;
}