anchor.diff:          <%= f.field_container :zones, :class => ['form-group'] do %>
             <% shipping_method_zones = @shipping_method.zones.to_a %>
             <% Spree::Zone.all.each do |zone| %>
  -            <%= label_tag do %>
  -              <%= check_box_tag('shipping_method[zones][]', zone.id, shipping_method_zones.include?(zone)) %>
  -              <%= zone.name %>
  -            <% end %>
  +            <div class="checkbox">
  +              <%= label_tag do %>
  +                <%= check_box_tag('shipping_method[zones][]', zone.id, shipping_method_zones.include?(zone)) %>
  +                <%= zone.name %>
  +              <% end %>
  +            </div>
             <% end %>
             <%= error_message_on :shipping_method, :zone_id %>
  -        <% end %>  
  +        <% end %>
         </div>
       </div>
     </div>
  
positive.code:     <div data-hook="admin_shipping_method_form_internal_name_field" class="col-md-4">
        <%= f.field_container :admin_name, :class => ['form-group'] do %>
          <%= f.label :admin_name, Spree.t(:internal_name) %>
          <%= f.text_field :admin_name, :class => 'form-control', :label => false  %>
          <%= error_message_on :shipping_method, :admin_name %>
        <% end %>
      </div>
  
negative.code:     <div data-hook="admin_shipping_method_form_code" class="col-md-4">
        <%= f.field_container :code, :class => ['form-group'] do %>
          <%= f.label :code, Spree.t(:code) %>
          <%= f.text_field :code, :class => 'form-control', :label => false %>
          <%= error_message_on :shipping_method, :code %>
        <% end %>
      </div>
  