Faculté des sciences - Faculté des sciences - UNIGE

Université de Genève - Université de Genève

Accueil - help UNIGE - UNIGE

Library - Bibliothèque - UNIGE

Faculté de traduction et d'interprétation - Faculté de traduction et d'interprétation - UNIGE

Service STEPS

Médecine - Faculté de médecine - UNIGE

International - International - UNIGE

Geneva School of Economics and Management - Faculté d'économie et de management - UNIGE

Faculté des lettres - Faculté des lettres - UNIGE

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.

## How to fix

* Ensure all interactive elements are at least 24 CSS pixels wide and tall
* OR ensure there is at least 24 CSS pixels (minus the width and height of the element)
  between each interactive 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

* [Target Size (Minimum)](https://www.w3.org/WAI/WCAG22/Understanding/target-size-minimum.html)
* [Technique C42 - Using min-height and min-width to ensure sufficient target spacing](https://www.w3.org/WAI/WCAG22/Techniques/css/C42)

ensure-minimum-target-size

November 2025

October 2025

University of Geneva

	Title / URL	Issues
	Faculté des sciences - Faculté des sciences - UNIGEwww.unige.ch/sciences/	37
	Université de Genève - Université de Genèvewww.unige.ch/	37
	Accueil - help UNIGE - UNIGEwww.unige.ch/help/	9
	Library - Bibliothèque - UNIGEwww.unige.ch/biblio/en/	9
	Faculté de traduction et d'interprétation - Faculté de traduction et d'interprétation - UNIGEwww.unige.ch/fti/	6
	Service STEPSwww.unige.ch/steps/	3
	Médecine - Faculté de médecine - UNIGEwww.unige.ch/medecine/	2
	International - International - UNIGEwww.unige.ch/international/	2
	Geneva School of Economics and Management - Faculté d'économie et de management - UNIGEwww.unige.ch/gsem/fr/	2
	Faculté des lettres - Faculté des lettres - UNIGEwww.unige.ch/lettres/	2

Ensure interactive components are far enough apart

University of Geneva

Where this issue has occurred