doccano/app/authentification/templates/base_auth.html

{% extends 'base.html' %}

{% block content %}
<div class="hero-body">
  <div class="container">
    <div class="card is-shady column is-4 is-offset-4">
      {% block content_auth %}{% endblock %}
    </div>
  </div>
</div>
{% endblock %}