test_sidebars_captions.html

<nav aria-label="Section navigation" class="bd-links" id="bd-docs-nav">
 <p aria-level="1" class="bd-links__title" role="heading">
  Section Navigation
 </p>
 <div class="bd-toc-item navbar-nav">
  <p aria-level="2" class="caption" role="heading">
   <span class="caption-text">
    Section 1
   </span>
  </p>
  <ul class="nav bd-sidenav">
   <li class="toctree-l1 has-children">
    <a class="reference internal" href="subsection1/index.html">
     Subsection 1.1 index
    </a>
    <input class="toctree-checkbox" id="toctree-checkbox-1" name="toctree-checkbox-1" type="checkbox">
     <label class="toctree-toggle" for="toctree-checkbox-1">
      <i class="fa-solid fa-chevron-down">
      </i>
     </label>
     <ul>
      <li class="toctree-l2">
       <a class="reference internal" href="subsection1/page1.html">
        Section 1 sub 1 page 1
       </a>
      </li>
      <li class="toctree-l2">
       <a class="reference internal" href="subsection1/page2.html">
        Section 1 sub 1 page 2
       </a>
      </li>
     </ul>
    </input>
   </li>
   <li class="toctree-l1">
    <a class="reference internal" href="page2.html">
     Section 1 page 1
    </a>
   </li>
  </ul>
 </div>
</nav>