Top 17 Accessibility Features No One Knows About

A practical deep-dive into 17 lesser-known web accessibility features that most developers overlook. Topics covered include: using `aria-describedby` and `aria-live` (with `aria-atomic` and `aria-relevant`) for dynamic form errors and toast notifications; the `inert` HTML attribute to prevent keyboard focus on off-screen or hidden content like drawers and modals; proper `autocomplete` attribute values for form inputs; minimum touch target sizes (24×24px recommended, 44×44px ideal); avoiding ARIA role overrides when native HTML elements suffice; skip-to-main-content links; dyslexia-friendly fonts; and the importance of keeping visual CSS order aligned with HTML DOM order for correct tab navigation. The testing section covers Chrome DevTools rendering emulation (color blindness, reduced motion, contrast, font scaling), Lighthouse accessibility audits, and color contrast ratio checking.