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• ImgWithoutAltCheck.html

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org.sonar.l10n.web.rules.Web.ImgWithoutAltCheck.html Maven / Gradle / Ivy

The alt attribute provides a textual alternative to an image.
It is used whenever the actual image cannot be rendered.
Common reasons for that include:

  
 The image can no longer be found 
  
 Visually impaired users using a screen reader software 
  
 Images loading is disabled, to reduce data consumption on mobile phones 

Empty alt attributes are not allowed, since purely decorative images should be specified using CSS, not using the img
tag.
Noncompliant Code Example
<img src="foo.png" />                                           <!-- Noncompliant -->
<img src="foo.png" alt="" />                                    <!-- Noncompliant -->
<input type="image" src="bar.png" />                            <!-- Noncompliant -->

Compliant Solution
<img src="foo.png" alt="Some textual description of foo.png" />
<input type="image" src="bar.png" alt="Textual description of bar.png" />