/pre>
</details>
{% endmacro %}

{% macro render_prevnext() %}
  {% if prev_chapter %}
    {% if chapter_lang_exists(lang, year, prev_chapter['slug']) %}
      <a id="previous-chapter" title="{{ self.previous() }}" href="/{{lang}}/{{year}}/{{prev_chapter['slug']}}">
          <span class="arrow" aria-hidden="true">&#8963;</span>
          <span class="chapter-no">
            {{ self.chapter() }} {{ prev_chapter['chapter_number'] }}
          </span>
          <span class="chapter-title">
              {{ l