Accessibility

The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect. (Tim Berners-Lee, W3C Director and inventor of the World Wide Web)

• Web Accessibility Initiative (WAI)
• Web Content Accessibility Guidelines (WCAG)

More at Introduction to Web Accessibility (w3.org).

Purpose, People

More at Accessibility: It’s About People (w3.org).

Components & Actors

More at Essential Components of Web Accessibility (w3.org).

Universal Principles

• Perceivable
• Operable
• Understandable
• Robust

More at Accessibility Principles (w3.org).

Reference:

• Introduction to Understanding WCAG (w3.org).
• All WCAG 2.1 Understanding Docs (w3.org).
• Accessibility Fundamentals Overview (w3.org).
• Design and Develop Overview (w3.org).
• The Word Wide Web Consortium (W3C): Introduction to Web Accessibility (edx.org).