`role=tabpanel` must not be a descendant of a heading Web Standard

Description

An element with the attribute role=tabpanel must not appear as a descendant of an h1, h2, h3, h4, h5, or h6 element.

Help

Only phrasing content roles are allowed inside headings.

Applicable standards

Change history

2026.61 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: W3cHtml5AssertNested-heading-role-tabpanel