Target Size (2.5.5 – Level AAA)

The target size for pointer inputs is at least 44 by 44 CSS pixels.

Introduction

Users with mobility impairments may have difficulty using elements if their target area is small. These users may have trouble with aiming or being able to keep a pointer steady. Larger target areas help these users interact with controls and elements.

How to Pass ‘ Target Size’

Ensure that the target areas for all pointer inputs are at least 44 by 44 CSS pixels.

Exceptions

• When the target is available through an equivalent control on the same page that meets the requirements.
  
• When the target is a sentence or block of inline text.
  
• When the target size is controlled by the user agent.
  
• When the presentation of a target that doesn’t meet the requirements is essential.
  

‘Target Size’ Tips

Remember that pointers include both mouse control and touch control.

Although there is a minimum size, the larger the control the easier it is for everyone to use.

Consider making frequently used or important controls larger.

Be careful not to place controls near the edge of a screen as this may be more difficult to reach for some users.

See Also

Understanding Success Criterion 2.5.5 (W3C)