Universität zu Köln: Sitemap

Universität zu Köln: Veranstaltungen Uni Köln: Tagungen, Kolloquien, Vorträge

Universität zu Köln: Kontakt & Anreise

Universität zu Köln: Systemakkreditierung

Universität zu Köln: Qualitätsmanagement Lehre & Studium

Universität zu Köln: Albertus Magnus Center

Universität zu Köln: Kontakt

Universität zu Köln: Universität zu Köln

Universität zu Köln: Exzellenzcluster

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

March 2026

February 2026

University of Cologne

Title / URL	Issues
Universität zu Köln: Sitemapwww.uni-koeln.de/?id=9440	100
Universität zu Köln: Veranstaltungen Uni Köln: Tagungen, Kolloquien, Vorträgeuni-koeln.de/universitaet/aktuell/veranstaltungen	66
Universität zu Köln: Kontakt & Anreiseuni-koeln.de/universitaet/orientierung/kontakt-anreise	54
Universität zu Köln: Systemakkreditierungwww.uni-koeln.de/?id=18690	52
Universität zu Köln: Qualitätsmanagement Lehre & Studiumuni-koeln.de/subportale/qualitaetsmanagement-lehre-studium	50
Universität zu Köln: Albertus Magnus Centeruni-koeln.de/forschung/wissenschaftliche-karriere/albertus-magnus-center-1	48
Universität zu Köln: Kontaktwww.uni-koeln.de/?id=9482	46
Universität zu Köln: Universität zu Kölnuni-koeln.de/	44
Universität zu Köln: Universität zu Kölnwww.uni-koeln.de/	44
Universität zu Köln: Exzellenzclusteruni-koeln.de/forschung/forschungsprofil/exzellenzcluster	43

Ensure interactive components are far enough apart

University of Cologne

Where this issue has occurred