<div class="border p2 mt1" style="height: 450px; overflow-y: scroll; overflow-x: hidden">
  <div class="right-align">
    <h3 class="mb3 mt0">Table of Contents</h3>
  </div>
  {% for item in site.data.toc %}
    {% include toc-contents.html toc_item=item highlight=true %}
  {% endfor %}
</div>
<p class="thin h6 mt1">The book's table of contents, with hands-on examples highlighted.</p>
