[% block head %] [[ render_block('head.html') ]] [% endblock head %] [% block body %] [% block messages %] [% endblock messages %] [% block nav %] [% endblock nav %] [% block header %] [% endblock header %] [% block main %] [% endblock main %] [% block footer %] [% endblock footer %] [% block tail %] [[ render_block('tail.html') ]] [% endblock tail %] [% endblock body %]