Time-based media alternatives: There should be readily available alternatives for audio and video content, such as a full transcript of sound clips and written explanations of any charts or tables. Operable Keyboard accessible: All functions of a website must be available with a simple keyboard. Gestures and using the mouse should never be the only input method. Navigable: There should be clear indications of where a user is on a website and how to access the various connected pages. All buttons, links and input fields should be clearly labeled and easily distinguishable.
Accessible gestures and inputs: Functionality should never depend on path-based or multi-touch gestures or pointer activity, and any input should have an option to abort or undo. Understandable Readable: All textual content should be able to individual email list be parsed by assistive equipment. Predictable: Web pages should work consistently and logically. Navigation buttons should retain the same context before and after use, and any context switching should be clear to the user. Input assistance: Web pages should help users avoid and correct possible errors. Any error message should have a clear explanation, a suggestion for solving it, and a label. Robust Backward compatibility:
Websites must be able to interface with previous generations of assistive technologies, as well as meet all current standards. Designed for assistive technologies: All elements of a website should have names, roles, and values that can be programmatically determined by screen readers and other assistive devices. Markup and status messages: Important text markup and status messages should be programmed to be accessible to screen readers, even if the message is not currently in focus.