blink element

(Referring UWEM Test: 7.2_HTML_01)

Test info

Failure cause

Found blink element

The document uses the blink element to create blinking content.

Why this may be a barrier

The blink element is supported by many browsers and can be used to create a blinking effect on text.
But it is not part of the HTML/XHTML standard and as such inherently inaccessible. Additionally avoid causing content to blink due to accessibility issues with slow readers and people with visual impairments and photosensitive epilepsy.

Good Example

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 //EN">
<html>
<head><title>Sample: Page WITHOUT BLINK-ELEMENT</title></head>
<body>

<h1>No Blink element</h1>
<p>No blinking text</p>

</body>
</html>

Solution

Remove the blink element.

References

Related WCAG 1.0 Checkpoint

7.2

"Until 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)." [Priority 2]
WCAG 1.0 Checkpoint 7.2

Referring UWEM Test

7.2_HTML_01

This test is targeted to find any blink elements.

Examples

  • Blinking text

    Blinking text may cause severe problems for slow readers and people with visual impairments or photosensitive epilepsy.
    Remove the blink element from your documents and highlight the element, using other elements and styles.

    Bad example:
    <body>
    <blink>
    This is a blinking text. It may cause severe problems for slow readers and people with visual impairments and photosensitive epilepsy. Additionally the blink element is not part of the HTML standard.
    </blink>
    </body>
    Good example:
    <body>
    <strong style="background: yellow; color: black;">
    This text is not blinking. It is highlighted by a yellow background and bold text and is readable for everyone.
    </strong>
    </body>