yo dawg i heard you like containers

templates/base.html

@@ -10,10 +10,11 @@
             {% block page_header %}{% endblock %}
         </div>
     </div>
+</div>
 
-    {{ utils.flashed_messages() }}
+{{ utils.flashed_messages() }}
 
+<div class="container">
     {% block app_content %}{% endblock %}
-
 </div>
 {% endblock %}