blog/templates/404.html

{% extends "terminimal/templates/404.html" %}

{% block content %}
<div class="post">
  <h1 class="post-title">{% block heading %}Lost?{% endblock heading %}</h1>
  <p>{% block message %}Looks like you're trying something that doesn't exist (anymore?).{% endblock message %}</p>
</div>
{% endblock content %}