Information and user interface components must be presentable
to users in ways they can perceive
User interface components and navigation must be operable
Information and the operation of user interface must be understandable
Content must be robust enough that it can be interpreted reliably by
a wide variety of user agents, including assistive technologies
»Do not read
In fact, do not read WCAG 2.
Web Accessibility is about
people, not about guidelines.«
(Shawn Henry, W3C WAI)
P 1. Provide equivalent
alternatives to auditory
and visual content.
1.1 Provide a text equivalent
for every non-text element.
1.1.1 Non-text Content: All non-text content
that is presented to the user has a text alternative
that serves the equivalent purpose
G94: Providing short text alternative for non-text content that
serves the same purpose and presents the same information as
the non-text content [...] Examples: A search button uses an image
of a magnifying glass. The text alternative is quot;searchquot; and not