Access denied | ADMIRALTY

S-100: Shaping the future of navigation | ADMIRALTY

Share your data with us

Explore our case studies | ADMIRALTY

S-57 to S-101: Explaining the IHO standards for ECDIS

S-100 Supporting standards of the future | ADMIRALTY

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

April 2025

March 2025

Admiralty

Title / URL	Issues
Access denied \| ADMIRALTYwww.admiralty.co.uk/about-us/work-for-us/working-at-ukho-OLD	6
Access denied \| ADMIRALTYwww.admiralty.co.uk/events/shaping-future-navigation-s-100-webinar24	6
S-100: Shaping the future of navigation \| ADMIRALTYwww.admiralty.co.uk/s-100-shaping-future-navigation	3
Share your data with uswww.admiralty.co.uk/share-data	3
Explore our case studies \| ADMIRALTYwww.admiralty.co.uk/about-us/case-study	2
S-57 to S-101: Explaining the IHO standards for ECDISwww.admiralty.co.uk/news/s-57-s-101-explaining-iho-standards-ecdis	1
S-100 Supporting standards of the future \| ADMIRALTYwww.admiralty.co.uk/access-data/s-100	1

Ensure focus is not fully obscured

Admiralty

Where this issue has occurred