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Priority 2 Checkpoints

Priority 2 Checkpoints

Priority 2

In General
2.2Ensure that foreground and background color combinations provide sufficient contrast when viewed by someone having color deficits or when viewed on a black-and-white screen [Priority 2 for images, Priority 3 for text].
3.1When an appropriate markup language exists, use markup rather than images to convey information.
3.2Create documents that validate to published formal grammars.
3.3Use style sheets to control layout and presentation.
3.4Use relative rather than absolute units in markup language attribute values and style sheet property values.
3.5Use header elements to convey document structure and use them according to specification.
3.6Mark up lists and list items properly.
3.7Mark up quotations. Do not use quotation markup for formatting effects such as indentation.
6.5Ensure that dynamic content is accessible or provide an alternative presentation or page.
7.2Until user agents allow users to control blinking, avoid causing content to blink (i.e., change presentation at a regular rate, such as turning on and off).
7.4Until user agents provide the ability to stop the refresh, do not create periodically auto-refreshing pages.
7.5Until user agents provide the ability to stop auto-redirect, do not use markup to redirect pages automatically. Instead, configure the server to perform redirects.
10.1Until user agents allow users to turn off spawned windows, do not cause pop-ups or other windows to appear and do not change the current window without informing the user.
11.1Use W3C technologies when they are available and appropriate for a task and use the latest versions when supported.
11.2Avoid deprecated features of W3C technologies.
12.3Divide large blocks of information into more manageable groups where natural and appropriate.
13.1Clearly identify the target of each link.
13.2Provide metadata to add semantic information to pages and sites.
13.3Provide information about the general layout of a site (e.g., a site map or table of contents).
13.4Use navigation mechanisms in a consistent manner.



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