anchor.diff:          <div class="panel-body">
             <%= f.check_box :required %>
             <%= f.translated_text_field :placeholder %>
  -          <%= f.number_field :maxlength %>
  -          <%= f.number_field :rows %>
  -          <%= f.number_field :cols %>
  -          <%= f.number_field :size %>
  +          <%= f.number_field :maxlength, step: 1, min: 1 %>
  +          <%= f.number_field :rows, step: 1, min: 1 %>
  +          <%= f.number_field :cols, step: 1, min: 1 %>
  +          <%= f.number_field :size, step: 1, min: 1 %>
             <%= f.text_field :html_class %>
           </div>
         </div>
  
positive.code:     <div class="panel-body">
        <%= f.text_field :widget %>
        <%= f.translated_text_field :unit_name %>
        <%= f.number_field :minimum %>
        <%= f.number_field :maximum %>
        <%= f.number_field :step %>
        <%= f.translated_text_field :labels %>
        <%= f.text_field :options %>
        <%= f.check_box :revenue %>
  
negative.code:     <div class="panel-body">
        <%= f.translated_text_field :name %>
        <%= f.text_field :machine_name %>
        <%= f.number_field :default_value, step: 'any' %>
        <%= f.number_field :unit_value, step: 'any' %>
        <%= f.text_field :account %>
      </div>
    </div>
  