{% block foo %}
    <pre class="code">
line1
    indented line2

        deeper
</pre>
{% endblock %}
-----
{% block foo %}
<pre class="code">
line1
    indented line2

        deeper
</pre>
{% endblock %}
-----
{% block foo %}
    <pre class="code">
line1
    indented line2

        deeper
</pre>
{% endblock %}
