anchor.diff:        <% @order.lines.each do |line| %>
           <tr>
             <td><%= line.amount %> <%= line.unit %></td>
  -          <td><%= line.product.name %></td>
  +          <td><%= link_to line.product.name, product_path(line.product) %></td>
             <td><%= line.detail %></td>
             <td><%= line.unit_price %></td>
  +          <td><%= line.subtotal %></td>
             <td><%= line.tax_rate %></td>
             <td><%= line.tax %></td>
  -          <td><%= line.subtotal %></td>
             <td><%= line.remaining_amount %> <%= line.unit %></td>
           </tr>
         <% end %>
  
positive.code: <div class="columns">
    <div class="column col-5">
      <label class="info-label"><%= Order.human_attribute_name 'firm_id' %></label>
      <div class="info-content"><%= @order.firm.name %></div>
    </div>
  
    <div class="column col-2">
  
negative.code:         <th><%= OrderLine.human_attribute_name 'product_id' %></th>
          <th><%= OrderLine.human_attribute_name 'detail' %></th>
          <th><%= OrderLine.human_attribute_name 'unit_price' %></th>
          <th><%= OrderLine.human_attribute_name 'subtotal' %></th>
          <th><%= OrderLine.human_attribute_name 'tax_rate' %></th>
          <th><%= OrderLine.human_attribute_name 'tax' %></th>
          <th><%= OrderLine.human_attribute_name 'remaining_amount' %></th>
        </tr>
        </thead>
  