add class

src/server/views/widget/not_found_tabs.html

@@ -1,12 +1,12 @@
 <ul class="nav nav-tabs hidden-print" role="tablist">
-  <li class="nav-item">
+  <li class="nav-item grw-nav-main-left-tab">
     <a class="nav-link active" role="tab" href="#revision-body" data-toggle="tab">
       <i class="icon-notebook"></i> List
     </a>
   </li>
 
   {% if !isTrashPage() and !page.isDeleted() %}
-  <li class="nav-item">
+  <li class="nav-item grw-nav-main-left-tab">
     <a
       {% if user %} href="#edit" role="tab" data-toggle="tab" class="nav-link edit-button" {% endif %}
       {% if not user %} class="edit-button edit-button-disabled" data-toggle="tooltip" data-placement="top" data-container="body" title="{{ t('Not available for guest') }}" {% endif %}