Purdue University Research & Partnerships, News and Events

Accessibility Resources - Purdue University

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All interactive components on a page, such as buttons or menus, should be far enough apart 
from other interactive areas, to avoid them being used by mistake. 

This ensures people with motor impairments can easily click or tap on the right element.

## Methodology

This check is run on both the mobile and desktop versions of every page. Results
for each may differ.

1. All interactive elements are identified, including buttons, links, and form controls.
2. If an element is not normally visible, it is ignored. This includes elements which
   are positioned offscreen or cropped (e.g. for 'screen-reader only' text).
3. If an element is larger than 24 CSS pixels in both dimensions, it passes.
4. Otherwise, the element is compared to all other elements on the page.
5. The minimum horizontal gap between the element is calculated as 24 CSS pixels,  
   minus the width of the element.
6. The minimum vertical gap between the element is calculated as 24 CSS pixels,  
   minus the height of the element.
7. If another element falls within the minimum horizontal or vertical gap, the 
   element fails, unless both are links that point to the same place.

## Further reading

This is part of the draft WCAG 2.2 specification and is subject to change.

* [Target Size (Minimum)](https://w3c.github.io/wcag/understanding/target-size-minimum.html)

ensure-minimum-target-size

August 2025

July 2025

	Title / URL	Issues
	Purdue University Research & Partnerships, News and Eventswww.purdue.edu/home/research/	32
	Accessibility Resources - Purdue Universitywww.purdue.edu/accessibilityresources/	27
	About Purdue University’s History, Traditions, Achievements & Morewww.purdue.edu/home/about/	22
	Student Life at Purdue University - Purdue Universitywww.purdue.edu/home/life-at-purdue/	14
	Academics at Purdue University - Majors, Minors, Collegeswww.purdue.edu/home/academics/	14
	Office of the Presidentwww.purdue.edu/president/	12
	Purdue Universitypurdue.edu/	11
	Purdue Universitywww.purdue.edu/	11
	Purdue Universitywww.purdue.edu/home/	11
	Contact Us - Purdue Universitywww.purdue.edu/home/contact-us/	8

Ensure interactive components are far enough apart

Purdue University

Where this issue has occurred