Square 1:1 Layout Skill

This skill is the layout source of truth for square-1-1 pages, usually 1200x1200.

A 1:1 page is a square content card. It works best when the card has one unmistakable center of gravity and balanced margins on all four sides. The layout should feel complete as a single shareable visual, not like a cropped presentation page.

Deep details live in the references:

• references/catalog.md - named square-card patterns and 1200x1200 zone skeletons.
• references/checklist.md - P0/P1/P2 structural self-check for delivery.

Preflight

Before writing HTML, decide: