This guidance currently aligns with the Web Content Accessibility Guidelines (WCAG) 2.1 and is being updated to reflect WCAG 2.2.
Organisations subject to the Web Accessibility Directive or the European Accessibility Act should refer to WCAG 2.2 (W3C.org)(w3.org) (w3.org), as compliance will be required when the revised EN 301 549 standard (PDF)(etsi.org) (etsi.org) is published in the Official Journal of the European Union in December 2026.
Techniques
The ribbon at the top includes a limited view of the available styles
The currently applied style is highlighted; clicking on a different style will change the appearance and nature of the selected text.

The styles panel provides a clearer view of the styles available
The currently applied style is indicated at the top and highlighted in the list; clicking on a different style will change the appearance and nature of the selected text.

References
WCAG 2.1
- 1.3.1 Info and Relationships (A)
EN 301 549 v 2.1.2
- 9.1.3.1 Info and Relationships