# Official Sources

Use current editions and verify publication status before claiming standards support.

## Core standards

- WCAG 2.2: https://www.w3.org/TR/WCAG22/
- WCAG Understanding documents: https://www.w3.org/WAI/WCAG22/Understanding/
- Media Queries Level 5, including reduced motion: https://www.w3.org/TR/mediaqueries-5/
- CSS Animations Level 1: https://www.w3.org/TR/css-animations-1/
- CSS Animations Level 2 draft: https://www.w3.org/TR/css-animations-2/
- CSS Transitions Level 1: https://www.w3.org/TR/css-transitions-1/
- CSS Transitions Level 2 draft: https://www.w3.org/TR/css-transitions-2/
- Web Animations Level 1 draft: https://www.w3.org/TR/web-animations-1/
- Web Animations Level 2 draft: https://www.w3.org/TR/web-animations-2/
- CSS View Transitions Level 1: https://www.w3.org/TR/css-view-transitions-1/
- CSS View Transitions Level 2 draft: https://www.w3.org/TR/css-view-transitions-2/
- Scroll-driven Animations draft: https://www.w3.org/TR/scroll-animations-1/
- Pointer Events Level 3: https://www.w3.org/TR/pointerevents3/
- HTML Living Standard: https://html.spec.whatwg.org/

## Accessibility details

- Animation from interactions: https://www.w3.org/WAI/WCAG22/Understanding/animation-from-interactions
- Pause, stop, hide: https://www.w3.org/WAI/WCAG22/Understanding/pause-stop-hide
- Pointer gestures: https://www.w3.org/WAI/WCAG22/Understanding/pointer-gestures
- Pointer cancellation: https://www.w3.org/WAI/WCAG22/Understanding/pointer-cancellation
- Motion actuation: https://www.w3.org/WAI/WCAG22/Understanding/motion-actuation
- Dragging movements: https://www.w3.org/WAI/WCAG22/Understanding/dragging-movements
- Three flashes: https://www.w3.org/WAI/WCAG22/Understanding/three-flashes-or-below-threshold

## Platform documentation

- MDN View Transition API: https://developer.mozilla.org/docs/Web/API/View_Transition_API
- MDN Web Animations API: https://developer.mozilla.org/docs/Web/API/Web_Animations_API
- MDN prefers-reduced-motion: https://developer.mozilla.org/docs/Web/CSS/@media/prefers-reduced-motion
- Chrome rendering performance: https://developer.chrome.com/docs/devtools/performance/
- Web Vitals: https://web.dev/articles/vitals
- Bootstrap reduced motion and components: https://getbootstrap.com/docs/

## Status notes as of July 2026

- Pointer Events Level 3 was published as a Candidate Recommendation Draft on 22 May 2026; verify whether it has advanced before making a Recommendation claim.
- Web Animations Level 2, View Transitions Level 2, Scroll-driven Animations, and CSS Animations Level 2 are draft specifications. Treat them as progressive enhancement and verify browser support.
- WCAG 2.3.3 Animation from Interactions is Level AAA, while related Level A and AA requirements such as Pause, Stop, Hide; Pointer Gestures; Pointer Cancellation; Motion Actuation; and Dragging Movements may still apply.