mkdocs-material/material/partials/footer.html

<footer class="md-footer">
  {% if page.previous_page or page.next_page %}
    <div class="md-footer-nav">
      <nav class="md-footer-nav__inner md-grid">
        {% if page.previous_page %}
          <a href="{{ page.previous_page.url }}" title="{{ page.previous_page.title }}" class="md-flex md-footer-nav__link md-footer-nav__link--prev" rel="prev">
            <div class="md-flex__cell md-flex__cell--shrink">
              <i class="md-icon md-footer-nav__icon">arrow_back</i>
            </div>
            <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title">
              <span class="md-flex__ellipsis">
                <span class="md-footer-nav__direction">
                  Previous
                </span>
                {{ page.previous_page.title }}
              </span>
            </div>
          </a>
        {% endif %}
        {% if page.next_page %}
          <a href="{{ page.next_page.url }}" title="{{ page.next_page.title }}" class="md-flex md-footer-nav__link md-footer-nav__link--next" rel="next">
            <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title">
              <span class="md-flex__ellipsis">
                <span class="md-footer-nav__direction">
                  Next
                </span>
                {{ page.next_page.title }}
              </span>
            </div>
            <div class="md-flex__cell md-flex__cell--shrink">
              <i class="md-icon md-footer-nav__icon">arrow_forward</i>
            </div>
          </a>
        {% endif %}
      </nav>
    </div>
  {% endif %}
  <div class="md-footer-meta md-typeset">
    <div class="md-footer-meta__inner md-grid">
      <div class="md-footer-copyright">
        {% if config.copyright %}
          <span class="md-footer-copyright__highlight">
            {{ config.copyright }}
          </span>
          <br>
        {% endif %}
        powered by
        <a href="http://www.mkdocs.org">MkDocs</a>
        and the
        <a href="http://squidfunk.github.io/mkdocs-material/">Material</a>
        theme
      </div>
      {% if config.extra.social %}
        <div class="md-footer-social">
          {% for social in config.extra.social %}
            <a href="{{ social.link }}" class="md-footer-social__link socicon-{{ social.type }}"></a>
          {% endfor %}
        </div>
      {% endif %}
    </div>
  </div>
</footer>