What problem does it solve? Web navigation often fails keyboard and screen reader users because landmarks, headings, and current-page indicators are missing or misused. This Skill provides concrete rules and a checklist for building navigation that assistive technologies can interpret correctly. ## Core Features & Use Cases - Landmark and Heading Structure: Defines how to label repeated landmarks uniquely and expose information hierarchy through headings. - Navigation Patterns: Covers skip links, breadcrumbs with list semantics, disclosure navigation with buttons and links, and current-page state that does not rely on color alone. - ARIA Guidance: Clarifies when not to use ARIA menu roles for ordinary site navigation. - Use Case: When implementing a site header with a responsive nav bar, apply this Skill to add a skip link, mark the current page semantically, and keep keyboard and screen reader flow intact on mobile. ## Quick Start Review my header and sidebar markup and apply the web accessibility navigation rules to fix landmarks, skip links, and current-page indication.