Standard 4:3 Layout Skill

This skill is the layout source of truth for standard-4-3 pages, usually 1600x1200.

A 4:3 page is a square-ish presentation canvas. It supports readable talk-track slides, balanced data + insight pairs, compact matrices, and diagrams with generous margins. Its best layouts use depth through hierarchy, not by spreading many columns across the width.

Deep details live in the references:

• references/catalog.md - named 4:3 presentation patterns and 1600x1200 zone skeletons.
• references/checklist.md - P0/P1/P2 structural self-check for delivery.

Preflight

Before writing HTML, decide: