CSS

Any gallery-related CSS should have additional selectors added to target images in the following structure in both the editor and front end

<figure class="wp-block-gallery blocks-gallery-grid has-nested-images columns-default is-cropped">
	<figure class="wp-block-image size-large">
		<img
			src="https://localhost/image1"
			alt="Image gallery image"
			class="wp-image-71"
		/>
	</figure>
	<figure class="wp-block-image size-large">
		<img
			src="https://localhost/image2"
			alt="Image gallery image"
			class="wp-image-70"
		/>
	</figure>
</figure>