anchor.diff:  
       <% end %>
     </fieldset>
  -</div>+</div>
  
positive.code:           </div>
            <div class="form-group col-lg-4 pull-right">
              <%= ff.label :submit, style: 'visibility: hidden;' %>
              <%= ff.submit 'Criar promoção', class: 'btn btn-primary form-control' %>
            </div>
          </div>
  
  
negative.code:           </div>
  
            <div class="form-group col-lg-4 col-md-6">
              <%= f.label :value, 'Value' %>
              <%= f.text_field :value, class: 'form-control' %>
            </div>
  
            <div class="form-group col-lg-4 col-md-6">
              <%= ff.label :currency, 'Currency' %>
              <%= ff.select :currency, options_for_select(supported_currencies_for_sale_price), {}, { class: 'select2'} %>
            </div>
          </div>
  