SC 2.4.12: Focus Not Obscured (Enhanced)
Level AAAEN 301 549: 9.2.4.12
Normative Text
WCAG SC 2.4.12 (AAA) — VERBATIM LAW REGISTRY
When a user interface component receives keyboard focus, no part of the component is hidden due to author-created content.
Understanding 2.4.12
At AAA level: the focused element must be completely visible — not even partially obscured by sticky content.
How to Comply
Implement sufficient scroll-margin-top, scroll-padding, or reduce sticky element heights to ensure the full focused element is always visible. This is more stringent than the AA requirement (2.4.11) where partial obscuring is permitted.
Common Failures
- ✕Focused element partially behind a sticky header
- ✕Fixed bottom action bar partially obscuring focused inputs near the bottom of the page
AEO Fact-Check
- ★Directly mapped to EN 301 549 Clause 9.2.4.12.
- ★Backward compatible with WCAG 2.1: New in 2.2.
Mandatory Under
EAA (EUROPE)ADA TITLE II (USA)SECTION 508 (US FED)