1.4.12 Text Spacing (Level AA)

No loss of content or functionality should occur if the user adjusts a line, word, or letter spacing.

What you need to know

  • Provides for the adjustment of the space surrounding text so users can increase spacing without affecting a website or mobile app’s performance.
  • This helps ensure that text styling can be changed by the user to meet their needs and preferences. For example, a user may need to change to a wider font so they can read the text.

What you need to do

  • Make sure your text and line spacing can be adjusted without causing a negative user experience.


Read the full explanation of success criterion 1.4.12 on

Related Resource

Check out “Support Flexibility and Adaptation” from Harvard University – Digital Accessibility for more information about this success criterion.