Vertical 9:16 Layout Skill

This skill is the layout source of truth for vertical-9-16 pages, usually 900x1600.

A 9:16 page is a vertical story screen. Its strongest layouts feel like a designed reading sequence: a top hook, a middle value zone, and a bottom conclusion or support area. The job is to make the page scan from top to bottom without becoming a stack of unrelated cards.

This canvas is a vertical story frame, not a compressed slide. When the source content is dense or "needs to be summarized", summarize or regroup it for this reading format instead of cramming a 16:9 deck's worth of outline into one page.

Deep details live in the references:

• references/catalog.md - named vertical story patterns and 900x1600 zone skeletons.
• references/checklist.md - P0/P1/P2 structural self-check for delivery.

Preflight

Before writing HTML, decide: