CSS Guardrail

CSS Guardrail とは？

I once spent hours debugging a WordPress site because the problem looked like anything but CSS. The cause was a tiny, easy-to-miss mistake buried in otherwise normal code. CSS Guardrail was born from that experience, adding the safety layer WordPress is missing by checking CSS before it is saved, warning about risky changes, blocking critical errors, and keeping recoverable backups. I’d genuinely value feedback from WordPress developers, freelancers, and agencies.