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interactionsVercel

Loading Buttons

MUST

MUST: Loading buttons show spinner and keep original label

Show a loading indicator and keep the original label

Bad

Good

Why it matters

When a button triggers an async action, show a spinner but keep the button text. Changing the text can cause layout shifts and makes it harder for users to understand what's happening. The spinner provides clear feedback that work is in progress.

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.