<pre> &lt!DOCTYPE html> &lthtml lang=“en”> &lthead> &lttitle>{% block title %}My Site{% endblock %}</title> {% block css %} {% endblock %} &ltmeta name=“viewport” content=“width=device-width, initial-scale=1.0”> &lt/head> &ltbody> Hello, world! &lt/body> &lt/html> </pre>
