.site-links-dropdown--button .field__item,
.site-links-dropdown--button .media--type-image {
  max-height: 90px;
  overflow: hidden;
}

.site-links-dropdown--button img {
  --content-grouping-switcher-image-height: 100%;

  display: block;
  width: auto;
  height: var(--content-grouping-switcher-image-height);
  object-fit: contain;
}