 that section.</p>
      <p>Normative sections provide requirements that authors and user agents, and assistive technologies MUST follow for an implementation to conform to this specification.</p>
      <p>
        Non-normative sections provide information useful to understanding the specification. Such sections may contain examples of recommended practice, but it is not required to follow such
        recommendations in order to conform to this specification.
      </p>

      <section id="deprecated">
  