<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> {% block content %} {% block header %} <div id="header"> <h1>{{ title|escape }}</h1> </div> {% endblock %} {% block footer %} <div id="footer"></div> {% endblock %} {% endblock %} </html>