2.5.5 Target Sizes Level AAA

The size of the target for pointer inputs is at least 44 by 44 CSS pixels except when:

Equivalent
The target is available through an equivalent link or control on the same page that is at least 44 by 44 CSS pixels;

Inline
The target is in a sentence or block of text;

User Agent Control
The size of the target is determined by the user agent and is not modified by the author;

Essential
A particular presentation of the target is essential to the information being conveyed.

[View on W3C.org]

Testing & Remediation

How to test: Open your site or app and inspect all touch targets to ensure they are at least 44 by 44 CSS pixels. This includes text/paragraphs that are also a link. How to remediate:
  • Increase the size of any touch targets that are smaller than 44 by 44 CSS pixels
  • Provide a mechanism to change the size of the target independent of magnification

Questions and Answers