1.4.4: Resize Text [AA]
Description
Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality.
Sufficient Techniques
Sufficient Techniques for Success Criterion 1.4.4
Note: Other techniques may also be sufficient if they meet the success criterion. See Understanding Techniques.
- G142: Using a technology that has commonly-available user agents that support zoom
- Ensuring that text containers resize when the text resizes AND using measurements that are relative to other measurements in the content by using one or more of the following techniques:
- C28: Specifying the size of text containers using em units
- Techniques for relative measurements
- Techniques for text container resizing
- G178: Providing controls on the Web page that allow users to incrementally change the size of all text on the page up to 200 percent
- G179: Ensuring that there is no loss of content or functionality when the text resizes and text containers do not change their width
Advisory Techniques
Failures
Failures for Success Criterion 1.4.4
- F69: Failure of Success Criterion 1.4.4 when resizing visually rendered text up to 200 percent causes the text, image or controls to be clipped, truncated or obscured
- F80: Failure of Success Criterion 1.4.4 when text-based form controls do not resize when visually rendered text is resized up to 200%
- F94: Failure of Success Criterion 1.4.4 due to incorrect use of viewport units to resize text