<footer class="footer">
    OpenSubmit v{{opensubmit_version}}
    &nbsp;&nbsp;<a href="mailto:{{opensubmit_admin}}">Feedback</a>
    {% if user.is_authenticated %}
    &nbsp;&nbsp; <a href="{{main_url}}/teacher/">Teacher backend</a>
    {% endif %}
    &nbsp;&nbsp; <a href="{{main_url}}/admin/">Admin backend</a>
</footer>
