GUIDELINES
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All HTML shall validate against chosen doctype
When color is used to convey information within content like charts, infographics, etc, additional cues must be available
Images that convey meaning with use of colors must include that information in the text alternative
The hint text for controls should have the role of aria-describedby
If audio or video (with audio) plays automatically, it should last less than three seconds or there must be a way to pause, stop or mute it
Pre-recorded audio (without video) that contains essential information needs to have a transcript
Pre-recorded audio that is part of a test or exercise only needs to have a descriptive label
Use pre-defined input purposes for controls that asks for user information
Content that starts auto-updating automatically must be possible to be paused, stopped, or hidden by the user or that the user can manually control the frequency of the updates
Don't trap users in a section of the page or in a component while navigating with a keyboard
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