A run of promotional pages shipped on advertising dates, each with its own art direction, several with a mechanic of their own: a timed quiz, a product switcher, a price ladder, a perks carousel.
A campaign page arrives with a launch date already promised to the client. It looks nothing like the last one, it lives for a few weeks, and it still has to load fast on a phone, work in every locale the client sells in, and report what marketing needs to see. Rebuilding the foundations each time is how that date gets missed.
Composable sections with strict props, so a campaign is assembled rather than coded from scratch, and the art direction stays free, which is the part a template would have taken away.
Super Mario got a timed quiz with a countdown and a lives tracker alongside a menu-versus-Happy-Meal switcher; Más x menos a price ladder you page through; Modo Familia a six-card perks carousel over a three-card offer picker. The kit carried everything around them.
The same models feeding every locale the campaign runs in, and a pass across real devices before each launch rather than a desktop emulator.
Repeatable deploys and a known set of sections meant the later campaigns took a fraction of the first one’s build time, with the same checks.
Every campaign launched on the date it was promised, and the pages that needed to be more than a poster, a quiz or a switcher or a carousel, got there without a separate build.