Prism: download css and js and save the files in ROOT\static\prism
base.html: add:
<pre><code class="language-python">
...
</code></pre>
is used, this should help:
<pre><code class="language-python"><textarea>{% verbatim %}
...
{% endverbatim %}</textarea></code></pre>
<pre><code class="language-html">
...
</code></pre>
<pre><code class="language-html"><textarea>{% verbatim %}
...
{% endverbatim %}</textarea></code></pre><pre><code class="language-css">
...
</code></pre><pre><code class="language-powershell">
...
</code></pre>