ARIA: mark role

The mark role semantically denotes HTML elements containing text that is marked/highlighted for reference purposes. This is semantically equivalent to the HTML <mark> element. If possible, you should use this element instead.

Example uses for mark are the exact same as the <mark> element. They include highlighting text in a quotation which is of special interest but is not marked in the original source material, comparable to using a highlighter pen to mark passages of a print article and indicating portions of the content that are relevant to the user's current activity, such as highlighting text matches found by a search feature.

Don't use mark for purely decorative styling such as syntax highlighting.

The mark element should not be given an accessible name; both aria-label and aria-labelledby attributes are prohibited on mark.

In the following example we have a document section that has been commented. The commented section is marked up using <span role="mark">.

<p>
  The last half of the song is a slow-rising crescendo that peaks at the
  <span role="mark" aria-details="thread-1">end of the guitar solo</span>,
  before fading away sharply.
</p>

<div role="comment" id="thread-1" data-author="chris">
  <h3>Chris said</h3>
  <p class="comment-text">I really think this moment could use more cowbell.</p>
  <p><time datetime="2022-03-30T19:29">March 30 2022, 19:29</time></p>
</div>

The related comment is marked up using an HTML structure wrapped with a <div> containing role="comment".

To associate the comment with the text being commented, we need to wrap the commented text with an element containing the aria-details attribute, the value of which should be the ID of the comment.

Using the <mark> element will automatically communicate a node has a role of mark. If at all possible, prefer using it instead.

Will be part of WAI-ARIA 1.3, which is still being drafted.

• HTML <mark> element