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formsVercel

Correct Types & Input Modes

MUST

MUST: Use correct `type` and `inputmode` for better keyboards & validation

Use the right type and inputmode for better keyboards and validation

Bad

Good

Why it matters

Mobile devices show different keyboards based on the input type and inputmode. Use type="email" for emails, type="tel" for phones, inputmode="numeric" for numbers, etc. This provides users with the most relevant keyboard layout.

References

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.