The long-form gallery pattern allows you to displaying a large number of images on a page and makes use of the Lightbox JavaScript library to view the images in an immersive experience.
Rules for the long-form gallery
Thumbnail images must be 170 × 170 pixels.
Must only be used within the main content of a long-form page.
A page may contain multiple galleries.
There should be no more than ten images in any one gallery.
Use data-lightbox="[gallery name]" to group images together for each gallery.
