A gallery with mixed aspect ratios
Landscape, portrait and square pictures in one gallery. The grid keeps each picture's own proportions and aligns each row to one height.
Galleries
Two galleries: one with captions, one with mixed aspect ratios; click a picture to open the viewer — in the admin: Content › Galleries.
A gallery with captions
Six pictures, each with a caption of its own. You give the caption on the gallery, not in the Media Drive; the Embed showcase article embeds this gallery.