Exclude the 'govuk-main-wrapper' class from certain pages as it intro…

…duces too much extra spacing

app/presenters/content_item_presenter.rb

@@ -118,6 +118,10 @@ def show_default_breadcrumbs?
     true
   end
 
+  def exclude_main_wrapper?
+    false
+  end
+
 private
 
   def voting_is_open?

app/presenters/html_publication_presenter.rb

@@ -48,6 +48,10 @@ def full_path(request)
     request.base_url + request.path
   end
 
+  def exclude_main_wrapper?
+    true
+  end
+
 private
 
   def public_timestamp

app/presenters/worldwide_corporate_information_page_presenter.rb

@@ -21,6 +21,10 @@ def sponsoring_organisations
     worldwide_organisation&.sponsoring_organisations
   end
 
+  def exclude_main_wrapper?
+    true
+  end
+
 private
 
   def show_contents_list?

app/presenters/worldwide_office_presenter.rb

@@ -30,6 +30,10 @@ def sponsoring_organisations
     worldwide_organisation&.sponsoring_organisations
   end
 
+  def exclude_main_wrapper?
+    true
+  end
+
 private
 
   def show_contents_list?

app/presenters/worldwide_organisation_presenter.rb

@@ -123,6 +123,10 @@ def sponsoring_organisations
     content_item.dig("links", "sponsoring_organisations") || []
   end
 
+  def exclude_main_wrapper?
+    true
+  end
+
 private
 
   def office(office, contact)

app/views/layouts/application.html.erb

@@ -31,7 +31,7 @@
 
     <%= yield :header %>
 
-    <main role="main" id="content" class="<%= @content_item.schema_name.dasherize %> govuk-main-wrapper" lang="<%= I18n.locale %>">
+    <main role="main" id="content" class="<%= @content_item.schema_name.dasherize %> <%= 'govuk-main-wrapper' unless @content_item.exclude_main_wrapper? %>" lang="<%= I18n.locale %>">
       <span id="Top"></span>
       <%= yield :main %>
     </main>