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If you have content that blinks, note the following:
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The <blink> tag is not
in any W3C standard. Don't use it
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Make sure that users can stop blinking objects
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Use other ways to highlight text, such as presentation markup. For example:
Use text-transform (for uppercase,
lowercase, and capitalization)
Use text-shadow for shadow
effects
Use text-decoration for underlines,
overlines and blinking. Note: In CSS, text-decoration:
blink causes content to blink but users can stop the effect by turning off
style sheets or overriding the rule in a user style sheet
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More information
An overview of the accessibility guidelines
Ensure user control of time-sensitive content changes
Don't make the screen flicker
Don't make content blink
Avoid movement
Don't create pages that automatically refresh
Don't use HTML to automatically redirect pages
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