<!-- .basic -->
<section id="_cavern_glow">
  <h2>Cavern Glow</h2>
  <div class="slide-content">
    <div class="paragraph">
      <p>The river rages through the cavern, rattling its content.</p>
    </div>
  </div>
</section>

<!-- .toc-placement-preamble -->
<section id="_cavern_glow">
  <h2>Cavern Glow</h2>
  <div class="slide-content">
    <div class="paragraph">
      <p>The river rages through the cavern, rattling its content.</p>
    </div>
  </div>
</section>
