anchor.diff:              <th class="text-left col-xl-1 col-lg-1 col-md-1 col-sm-1 hidden-xs">図鑑 No.</th>
               <th class="text-left col-xl-1 col-lg-1 col-md-1 hidden-sm hidden-xs">艦型</th>
               <th class="text-left col-xl-1 col-lg-1 col-md-1 hidden-sm hidden-xs">艦番号</th>
  -            <th class="hidden">艦番号（ソート用）</th>
               <th class="text-left col-xl-1 col-lg-1 col-md-1 col-sm-1 hidden-xs">艦種</th>
               <th class="text-left col-xl-1 col-lg-1 col-md-1 col-sm-1 col-xs-1">艦名</th>
               <th class="text-left col-xl-1 col-lg-1 col-md-1 col-sm-1 col-xs-1">限定カード</th>
  
positive.code:             <td class="numeric hidden-xs"><%= ship.book_no %></td>
              <td class="text-left hidden-sm hidden-xs"><%= ship.ship_class %></td>
              <td class="text-left hidden-sm hidden-xs"><%= ship.ship_class_index %>番艦</td>
              <td class="hidden"><%= ship.ship_class_index %></td>
              <td class="text-left hidden-xs"><%= ship.ship_type %></td>
              <td class="text-left"><%= ship.ship_name %></td>
              <% 6.times do |idx| %>
  
negative.code:                 <td class="numeric hidden-xs"><%= ship.book_no %></td>
                  <td class="text-left hidden-sm hidden-xs"><%= ship.ship_class %></td>
                  <td class="text-left hidden-sm hidden-xs"><%= ship.ship_class_index %>番艦</td>
                  <td class="text-left hidden-xs"><%= ship.ship_type %></td>
                  <td class="text-left"><%= ship.ship_name %></td>
                  <% if @special_cards[sship.book_no][sship.card_index].nil? %>
  