        {% endblock pre_wrapper %}
        <div id="wrapper">
            {% block navigation %}
                <!-- Navigation -->
                <nav class="navbar navbar-default navbar-fixed-top" role="navigation" style="margin-bottom: 0">
                    <div class="navbar-header">
                        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                            <span class="sr-only">Toggle navigation</span>
                     