diff --git a/source/_layouts/default.html.twig b/source/_layouts/default.html.twig
index 997733593..1796eb35f 100644
--- a/source/_layouts/default.html.twig
+++ b/source/_layouts/default.html.twig
@@ -29,7 +29,7 @@
 
         <div class="container">
             <div class="row">
-                <main class="col-md-9">
+                <main class="content col-md-9">
                     {% block content_top %}{% endblock %}
                     {% block content_wrapper %}{% block content %}{% endblock %}{% endblock %}
                     {% block content_bottom %}{% endblock %}