Techniques for WCAG 2.0

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F47: Failure of Success Criterion 2.2.2 due to using the blink element



This failure relates to:

User Agent and Assistive Technology Support Notes

The blink element is not supported by Internet Explorer 6 on Windows. It is supported in Netscape/Mozilla family of user agents and Opera on Windows.


The blink element, while not part of the official HTML or XHTML specification, is supported by many user agents. It causes any text inside the element to blink at a predetermined rate. This cannot be interrupted by the user, nor can it be disabled as a preference. The blinking continues as long as the page is displayed. Therefore, content that uses blink fails the Success Criterion because blinking can continue for more than three seconds.


Failure Example 1

A product list page uses the blink element to draw attention to sale prices. This fails the Success Criterion because users cannot control the blink.

Example Code:

<p>My Great Product <blink>Sale! $44,995!</blink></p>



  1. Examine code for the presence of the blink element.

Expected Results