CARVIEW

MOTORHOMES

Select Language

HTTP/2 200 date: Thu, 09 Oct 2025 02:08:17 GMT content-type: text/html; charset=utf-8 content-encoding: gzip last-modified: Fri, 07 Oct 2016 19:51:11 GMT cache-control: max-age=31536000 expires: Fri, 09 Oct 2026 02:08:17 GMT vary: Accept-Encoding,Origin access-control-allow-origin: * x-backend: www-mirrors x-request-id: 98ba54486a441f95 strict-transport-security: max-age=15552000; includeSubdomains; preload content-security-policy: frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests cf-cache-status: BYPASS set-cookie: __cf_bm=JS.Ej0ZWQ7Qlm0hxstiDr_z40gO5pMUUAAFgvBcAeKw-1759975697-1.0.1.1-Gn4urOmyCitnIU.7XjSlT_U14.lw2GdSRjWA9jfTrk6sROT7KOUXeWDJdd.ANXF4IjfaXBzh9wSkFU9AbTjwax87RGG.5BxBlaFuZuTh6XE; path=/; expires=Thu, 09-Oct-25 02:38:17 GMT; domain=.w3.org; HttpOnly; Secure; SameSite=None server: cloudflare cf-ray: 98ba54486a441f95-BLR alt-svc: h3=":443"; ma=86400 F4: Failure of Success Criterion 2.2.2 due to using text-decoration:blink without a mechanism to stop it in less than five seconds | Techniques for WCAG 2.0

Skip to Content (Press Enter)

On this page:

F4: Failure of Success Criterion 2.2.2 due to using text-decoration:blink without a mechanism to stop it in less than five seconds

Important Information about Techniques

See Understanding Techniques for WCAG Success Criteria for important information about the usage of these informative techniques and how they relate to the normative WCAG 2.0 success criteria. The Applicability section explains the scope of the technique, and the presence of techniques for a specific technology does not imply that the technology can be used in all situations to create content that meets WCAG 2.0.

Applicability

Cascading Style Sheets.

This failure relates to:

Success Criterion 2.2.2 (Pause, Stop, Hide)
- How to Meet 2.2.2 (Pause, Stop, Hide)
- Understanding Success Criterion 2.2.2 (Pause, Stop, Hide)

User Agent and Assistive Technology Support Notes

See User Agent Support Notes for F4.

Description

CSS defines the blink value for the text-decoration property. When used, it causes any text in elements with this property to blink at a predetermined rate. This cannot be interrupted by the user, nor can it be disabled as a user agent preference. The blinking continues as long as the page is displayed. Therefore, content that uses text-decoration:blink fails the Success Criterion because blinking can continue for more than three seconds.

Examples

Failure Example 1

A product list page uses the text-decoration:blink style on an element to draw attention to sale prices. This fails the Success Criterion because users cannot control the blink.

Example Code:


<p>My Great Product <span style="text-decoration:blink">Sale! $44,995!</span></p>

Resources

Resources are for information purposes only, no endorsement implied.

CSS 2 text-decoration property

SCR22: Using scripts to control blinking and stop it in five seconds or less

Tests

Procedure

Examine inline styles, internal stylesheets, and external stylesheets for the text-decoration property with a value of "blink".
If the property is used, determine if the ID, class, or element identified by selectors on which this property is defined are used in the document.

Expected Results

If step #1 and step #2 are true, the content fails the success criterion.

This Web page is part of Techniques and Failures for Web Content Accessibility Guidelines 2.0 (see the latest version of this document). The entire document is also available as a single HTML file. See the The WCAG 2.0 Documents for an explanation of how this document fits in with other Web Content Accessibility Guidelines (WCAG) 2.0 documents. To send public comments, please follow the Instructions for Commenting on WCAG 2.0 Documents.

Original Source | Taken Source