These articles provide practical advice on how to write your web content so that it conforms to the success criteria outlined in the Robust principle of the Web Content Accessibility Guidelines (WCAG) 2.0 and 2.1. Robust states that content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies. This can generally be achieved by following web standards and testing rigorously.
Easy to work with different Web browsers and Technologies Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies: As technologies and user agents evolve, the content should remain accessible. Under this principle you will find guidelines relating but not limited to: Maximize compatibility with…
4.1.1 Parsing: In content implemented using markup languages, elements have complete start and end tags, elements are nested according to their specifications, elements do not contain duplicate attributes, and any IDs are unique, except where the specifications allow these features. (Level A) Requirements (Web only) HTML elements have complete start and end tags; HTML elements…
4.1.2 Name, Role, Value: For all user interface components (including but not limited to: form elements, links and components generated by scripts), the name and role can be programmatically determined; states, properties, and values that can be set by the user can be programmatically set; and notification of changes to these items is available to…
4.1.3 Status Messages: In content implemented using markup languages, status messages can be programmatically determined through role or properties such that they can be presented to the user by assistive technologies without receiving focus. (Level AA) Requirements There are different situations where a status message need to be shown in a way that screen readers…
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