Forschung | TU Wien

Technische Universität Wien, TU Wien, TUW. Studium. Studieren an der TU Wien. | TU Wien

Academy for Continuing Education | TU Wien

TUW Community | TU Wien

TU Wien Bibliothek – Startseite | TU Wien

TU Green Team | TU Wien

Fakultäten | TU Wien

Technische Universität Wien, TU Wien, TUW. Suche. Suchsyntax, Feedback, Filter. | TU Wien

Betriebsrat | TU Wien

TU Vision | TU Wien

When selecting a user interface component with the keyboard, the focus indicator must 
not be completely obscured by anything in front of it.

## Why this matters

When using a keyboard, it is important that the user can see where they are on the page.
If the focus indicator is obscured, the user may not know where they are, and may not
be able to interact with the page.

## Examples

Most common examples include:

* Banners at the top or bottom of the page, such as cookie banners
* Fixed navigation bars
* Fixed footers
* Popup modals, such as cookie consent modals

## How to fix

With elements that cover part of the screen, such as cookie banners, ensure
that the user can scroll to see any content behind the banner, without having to close
the banner.

With popup modals, it should usually be impossible to focus anything behind the modal.
Most common modal frameworks will automatically trap focus within the modal, so that
this is impossible. Example: [Bootstrap Modal](https://getbootstrap.com/docs/5.2/components/modal/#live-demo).

## Further reading

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

* [WCAG 2.4.12](https://www.w3.org/WAI/WCAG22/Understanding/focus-not-obscured.html)

ensure-focus-is-not-obscured-minimum

February 2025

January 2025

Vienna University of Technology

Title / URL	Issues
Forschung \| TU Wienwww.tuwien.at/forschung	2
Technische Universität Wien, TU Wien, TUW. Studium. Studieren an der TU Wien. \| TU Wienwww.tuwien.at/studium	2
Academy for Continuing Education \| TU Wienwww.tuwien.at/ace	2
TUW Community \| TU Wienwww.tuwien.at/community	2
TU Wien Bibliothek – Startseite \| TU Wienwww.tuwien.at/bibliothek	2
TU Green Team \| TU Wienwww.tuwien.at/greenteam	2
Fakultäten \| TU Wienwww.tuwien.at/fakultaeten	2
Technische Universität Wien, TU Wien, TUW. Suche. Suchsyntax, Feedback, Filter. \| TU Wienwww.tuwien.at/services/suche	2
Betriebsrat \| TU Wienwww.tuwien.at/betriebsrat	2
TU Vision \| TU Wienwww.tuwien.at/vision	2

Ensure focus is not fully obscured

Vienna University of Technology

Where this issue has occurred