ARIA: note role

The note role can be added to parenthetic or ancillary content if no other native element or other role fits the purpose.

aria-label or aria-labelledby (optional)

Naming a note is optional, but can help screen reader users understand its context and purpose. The name can be provided using aria-labelledby if a visible label is present, otherwise with aria-label.

<h1>Madam C. J. Walker</h1>
<p>
  Madam C.J. Walker was an African American entrepreneur, philanthropist, and
  political and social activist.
</p>
<h2>Early Life</h2>
…
<h2>Career</h2>
…
<p role="note" class="hilitebox">
  At the height of the depression, Madam C. J. Walker trained 20,000 women to
  sell hair pomade door-to-door
</p>
<h2>Activism and Philanthropy</h2>
…

In the above Wikipedia style entry for Madam C.J. Walker, the hilitebox with role note could have been a <blockquote> if it contained a quote or <figcaption> in a <figure> if there was an associated image. In this case, as neither of those made sense, the note role was added to add semantics to the parenthetic content.

• Document structure roles