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Dynamic content is content
that changes over time or in response to user actions. This might be:
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Text that is held on a database and is uploaded in real time to a web page
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Video, audio and content presented through scripts and applets. For example,
a continually scrolling news ticker where the headlines are updated in real time
It is good practice to provide an equivalent version of dynamic contents, possibly
on another page. However, this version must be as up-to-date as the dynamic version.
You should:
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Provide text equivalents for applets and programmatic objects
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Provide text equivalents of frames so that their contents and the relationships
between frames make sense. Note: As the contents of a frame change, so must any
description. This is not possible if you put an image directly into a frame.
Always make the source of a frame an HTML file. Images may be inserted into the
HTML file and their text alternatives will evolve correctly
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Provide text equivalents of scripts. Use the <noscript>
tag. The browser displays the contents of this tag when scripts are not enabled
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More information
An overview of the accessibility guidelines
Ensure that pages featuring new technologies transform gracefully
Organise pages so they work without style sheets
Update equivalents for dynamic content when the dynamic content changes
Ensure that pages are usable when scripts, applets, or other programmatic objects are turned off
Ensure that event handlers are input device-independent
Ensure that dynamic content is accessible
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