principle: Operable
Make sure that everyone can navigate and interact with the same content and components. Can people operate this content with whatever capacity they have?
2.4.8 Location
It must be clear where you are within a set of pages (e.g. using breadcrumbs, highlighted menu items, or headings).
2.4.9 Link Purpose (Link Only)
The purpose of each link must be clear; from the link text alone; without relying on surrounding context.
2.4.10 Section Headings
Related content must be organized into clear sections using headings.
2.4.11 Focus Not Obscured (Minimum)
When an element receives focus, it must be at least partially visible.
2.4.12 Focus Not Obscured (Enhanced)
When an element receives focus, it must be fully visible and not covered by other content.
2.4.13 Focus Appearance
The visible focus indicator must be at least 2px thick, have a contrast ratio of 3:1 compared to the unfocused state, and be clearly connected to the focused element.
2.5.1 Pointer Gestures
Actions that rely on gestures (like swiping or pinching) must also be possible using a single tap, click, or button.
2.5.2 Pointer Cancellation
Actions must not trigger on press or touch down. They must only trigger on release (like mouse-up or finger lift).
2.5.3 Label in Name
The visible text of a button, link, or form field must also be part of its accessible (programmatic) name.
2.5.4 Motion Actuation
If an action can be triggered by motion (like shaking or tilting the device), it must also work without motion, and be possible to turn off motion-based input.
