Examples of the overlap between H II regions and their ionising sources. Each cutout shows a three-colour composite image based on the five available HST bands, overlaid with the H α line emission from MUSE in red. (a) H II region with a fully contained association; (b) H II region with fully and partially contained associations plus two compact clusters; (c) H II region with two fully contained associations and one compact cluster; (d) Multiple H II regions that form a single H II region complex with multiple associations and clusters; (e) Association overlapping with two H II regions.