Use standard style for tabs in profile view

app/views/users/show.html.haml

@@ -73,7 +73,7 @@
   .user-calendar-activities
 
 
-%ul.center-middle-menu
+%ul.center-top-menu.no-top.no-bottom
   %li.active
     = link_to "#activity", 'data-toggle' => 'tab' do
       Activity
@@ -92,17 +92,26 @@
 
 .tab-content
   .tab-pane.active#activity
+    .gray-content-block.middle-block
+      Public activity by #{@user.name}
+
     .content_list
     = spinner
 
   - if @groups.any?
     .tab-pane#groups
+      .gray-content-block.middle-block
+        Groups #{@user.name} is a member of
+
       %ul.content-list
         - @groups.each do |group|
           = render 'shared/groups/group', group: group
 
   - if @contributed_projects.present?
     .tab-pane#contributed
+      .gray-content-block.middle-block
+        Projects #{@user.name} has contributed to
+
       .contributed-projects
         = render 'shared/projects/list',
           projects: @contributed_projects.sort_by(&:star_count).reverse,
@@ -110,6 +119,9 @@
 
   - if @projects.present?
     .tab-pane#personal
+      .gray-content-block.middle-block
+        Projects owned by #{@user.name}
+
       .personal-projects
         = render 'shared/projects/list',
           projects: @projects.sort_by(&:star_count).reverse,