Forum Discussion
Accessibility Question about Heading Levels and Heading Styles
caroline2210 This is highlighted in Microsoft's Accessibility Conformance Reports.
https://www.microsoft.com/en-us/accessibility/conformance-reports
Do a search for SharePoint Online and you can see it mentioned in the WCAG document in section: 1.3.1 Info and Relationships.
Many Web Parts introduce a level 2 heading to pages without providing a means for users to change that heading level.
For headings added to pages using the Text Web Part, the heading level the page author specifies is downgraded by one when presented to the end user (e.g., a heading a page author sets to level 1 will be presented as a heading level 2 in the final HTML). The purpose of this is to ensure that the page title is always the only heading level 1 on the page and to avoid conflicts with heading levels when users copy and paste from other sources.
Tables added with the Text Web Part do not have column or row headers defined.