@for $items from 1 through 9 {
  .gallery-columns-#{$items} .gallery-item {
    @if ($items == 1) {
      width: 100%;
      max-width: 100%;
    } @else {
      max-width: (100%/$items - 2);
      width: (100%/$items - 2);
    }
  }
}

.gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.gallery-item {
  display: inline-block;
  text-align: center;
  vertical-align: top;
}

.nv-content-wrap ul.wp-block-gallery {
  padding-left: 0;
}