Select a CAPTCHA provider that is already conformant to 508 standards. If a CAPTCHA is used, require the CAPTCHA test to have a text alternative that describes its purpose, and require that an alternate form of the CAPTCHA, using a different modality, also be provided. If the purpose of non-text content is to confirm the content is being accessed by a person rather than a computer, then text alternatives that identify and describe the purpose of the non-text content are provided, and alternative forms of CAPTCHA using output modes for different types of sensory perception are provided to accommodate different disabilities. User must be able to configure auto-updates to content. Best Practice: Do not use content that automatically moves, blinks, or scrolls. Auto-updating: For any auto-updating information that (1) starts automatically and (2) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it, or to control the frequency of the update, unless the auto-updating is part of an activity where it is essential. Moving, blinking, scrolling: For any moving, blinking or scrolling information that (1) starts automatically, (2) lasts more than five seconds, and (3) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it, unless the movement, blinking, or scrolling is part of an activity where it is essential and. Best Practice: Ensure that a mechanism to control the content is easy to locate, is keyboard operable, and its purpose is clearly labelled.įor moving, blinking, scrolling, or auto-updating information, ALL of the following are true:. Best Practice: Do not play any audio content automatically. Refer to Requirement 5 - Non-Interference to learn more. If any audio on a web page plays automatically for more than 3 seconds, either a mechanism is available to pause or stop the audio, or a mechanism is available to control audio volume independently from the overall system volume level.įailure to meet this requirement could interfere with any use of the page. Provide a descriptive link to a text transcript or the audio track (for silent video/animation content) immediately after the audio-only or video-only content. Video-Only or Silent Animation: Provide a text transcript or an audio track for video-only (without sound) content. 
Audio-Only: Provide a text transcript for audio-only content.Prerecorded Video-only: Either an alternative for time-based media or an audio track is provided that presents equivalent information for prerecorded video-only content.
Prerecorded Audio-only: An alternative for time-based media is provided that presents equivalent information for prerecorded audio-only content.Click on a topic name to jump to that topic for an explanation of the WCAG requirements (also known as Success Criteria) related to that topic.ġ.2.1 Audio-only and Video-only (Prerecorded)įor prerecorded audio-only and prerecorded video-only media, the following are true, except when the audio or video is a media alternative for text and is clearly labeled as such: Major topics are listed below in alphabetical order. If you are a developer, designer, or content manager, keep reading! Bookmark this guide and refer to it whenever you’re developing new content, websites or digital tools. It also clarifies how developers should work together with designers and content creators to ensure that federal websites and digital products meet the Revised 508 Standards.
WEBDESIGN TECHNIQUES HOW TO
Do you know how to create accessible digital products and services? This guide recaps relevant Web Content Accessibility Guidelines (WCAG)requirements and calls out specific considerations for content, design, and development.
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