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animationsVercel

Correct Transform Origin

MUST

MUST: Correct `transform-origin` (motion starts where it "physically" should)

Anchor motion to where it physically starts

Bad

Good

Why it matters

When elements scale or rotate, the transform-origin should match where the motion naturally originates. For example, a dropdown opening from a button should scale from the button's position, not from the center of the dropdown.

Built by Gleb Stroganov, design engineer at Evil Martians.

The rules come from other people's skills and guidelines — Vercel, Rauno Freiberg, @Ibelick, impeccable, Emil Kowalski, Tailwind, RAMS — each one credited on the Sources page. The work here is extraction and wiring: every rule is pulled into one corpus, given a good and a bad example you can operate, a MUST/SHOULD/NEVER rule an agent can paste, and a link back to where it came from.