Test: If non-text content is a test or exercise that would be invalid if presented in text, then text alternatives at least provide descriptive identification of the non-text content.(Refer to Guideline 1.2 for additional requirements for media.) Time-Based Media: If non-text content is time-based media, then text alternatives at least provide descriptive identification of the non-text content.(Refer to Guideline 4.1 for additional requirements for controls and content that accepts user input.) Controls, Input: If non-text content is a control or accepts user input, then it has a name that describes its purpose.Success CriterionĪll non-text content that is presented to the user has a text alternative that serves the equivalent purpose, except for the situations listed below. Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language. Principle 1: Perceivable Guideline 1.1: Text Alternatives Also, a success criterion can be fulfilled in other ways not (yet) specified by the sufficient techniques. no audio/video material), that success criterion should be considered "passed". The satisfaction of a success criterion is based primarily upon the absence of failure, as much as it is about the fulfilment of the sufficient techniques.Where a technology are not used in an accessibility-supported way, it must not interfere with the user being able to use the rest of the page ( C.R.4), or alternative versions are provided using an accessibility-supported technology. Only accessibility-supported technologies should be relied upon to achieve conformance ( C.R.
Document fragments do not qualify for conformance in and of themselves, however any failures in them would mean failure to conform in pages including them.
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Conformance can only be claimed for full web pages ( C.R.meeting all of the applicable Success Criteria for the target level and lower) is merely one. Keep in mind when you read these success criteria, that any claim of conformance must meet the Conformance Requirements, of which meeting a certain level of conformance (eg. Notices are items that HTML_CodeSniffer cannot automatically detect,īut should be manually inspected to ensure compliance with the standard.
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Warnings are items that HTML_CodeSniffer are able to detect as a potential problem,īut require manual inspection to determine whether it is a failure.This page lists all the Success Criteria of the W3C Web Content Accessibility Guidelines, version 2.1 ("WCAG 2.1").Īnything that is not marked as an Error should be manually tested:
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