September 2001
Intermediate to advanced
640 pages
31h 42m
English
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Accessibility in Web Technologies
Accessibility—addressing both the needs of the disabled and the growing usage of alternative and mobile browsing devices by the general public—has been a guiding force in the evolution of the technologies we use to create web content. Under the supervision of the WAI, both the HTML 4.0 and CSS2 specifications feature many methods for increasing access to web sites.
HTML 4.01 Features
The HTML 4.01 specification incorporates a number of new attributes and tags aimed specifically at making web documents available to a broader audience. This section lists only a broad summary of accessibility features in HTML 4.01. For a more detailed listing, see the WAI’s HTML Techniques for Web Content Accessibility Guidelines 1.0 at http://www.w3.org/TR/WCAG10-HTML-TECHS/. Or tackle the HTML 4.0 Specification yourself at http://www.w3.org/TR/REC-html40/. Accessibility features of the Specification include:
Increased distinction between document structure and presentation. HTML 4.0 encourages the use of Cascading Style Sheets for stylistic information.
Navigational aids such as access keys and tab index for keyboard-only access to page elements.
A new client-side imagemap recommendation that integrates image and text links.
Introduction of the
<abbr>and<acronym>tags, which assist speech devices and other agents in the interpretation of abbreviations and acronyms.The ability to group table columns and rows logically and to provide captions, summaries, and long ...
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