>Informative notes begin with the word “Note”
    and are set apart from the normative text
    with <code>class="note"</code>,
    like this:

    </p>
   <p class="note" role="note">Note, this is an informative note.</p>
   <section>
    <h3 class="no-ref no-num heading settled" id="w3c-conformant-algorithms"><span class="content">Conformant Algorithms</span><a class="self-link" href="#w3c-conformant-algorithms"></a></h3>
    <p>Requirements phrased in the imperative as part of algorithms
    (such as