Accessibility API Mappings
- Accessible Name and Description Computation 1.1
- W3C Recommendation 18 December 2018
- Core Accessibility API Mappings 1.1
- W3C Recommendation 14 December 2017
- HTML Accessibility API Mappings 1.0
- W3C Working Draft 17 December 2019
WAI-ARIA
- WAI-ARIA Overview
- WAI-ARIA 1.2
- W3C Editor's Draft 05 March 2020
- WAI-ARIA 1.1
- W3C Recommendation 14 December 2017
- WAI-ARIA Authoring Practices 1.2
- W3C Editor's Draft 03 March 2020
- WAI-ARIA Authoring Practices 1.1
- W3C Working Group Note 14 August 2019
- Index of ARIA Design Pattern Examples
- WAI-ARIA Authoring Practices 1.1
HTML & ARIA
- ARIA in HTML
- W3C Working Draft 15 February 2020
- HTML5 Accessibility
- Browser support table
- HTML5 Accessibility Chops: When to use an ARIA role
- Using ARIA *
- W3C Working Draft 27 September 2018
CSS Reference: MDN
CSS Specifications
- CSS Overview
- W3C CSS Working Group
- CSS Selectors Level 4
- W3C Editor's Draft, 21 April 2016
- CSS Selectors Level 3
- W3C Recommendation 29 September 2011
- CSS Snapshot 2010
- W3C Working Group Note 12 May 2011
DOM Reference: MDN
DOM Specifications
- DOM4
- W3C Recommendation 19 November 2015
- UI Events Specification
- W3C Working Draft 15 December 2015
HTML Misc.
HTML Reference
- HTML Reference: MDN
- Elements & attributes
- ASCII Codes
- Character Entities (W3C)
- HTML5: MDN *
- Dive Into HTML5
HTML Specifications
- HTML 5.1
- W3C Working Draft, 3 May 2016
- HTML 5
- W3C Recommendation 28 October 2014
- XHTML 1.0
- W3C Recommendation 1 August 2002
- HTML 4.01
- W3C Recommendation 24 December 1999
SVG
- SVG 1.1, 2nd Ed.
- W3C Recommendation 16 August 2011
- Scalable Vector Graphics (SVG) 2
- W3C Editor’s Draft 4 November 2015
- Accessibility Features of SVG
- W3C Note 7 August 2000
- SVG: MDN
- SVG: W3C Working Group
- Scalable Vector Graphics in HTML5 (IBM)
- Basic concepts and usage
Validators
- CSS Validator (W3C)
- HTML Validator (W3C)
- HTML5 Validator
- Created with Mozilla support
- W3C Link Checker