anchor.diff:        <tr>
           <td></td>
           <td><em>You have no buildings.</em></td>
  -        <td></td>
         </tr>
       <% else %>
         <% @tribe.buildings.uniq.each do |building| %>
           <tr>
             <td><%= @tribe.count_building(building.name) %></td>
             <td><%= building.name %></td>
  -          <td>
  -            <% if building.usable? %>
  +          <% if building.usable? %>
  +            <td>
                 <form action="/tribes/<%= @tribe.slug %>/buildings" method="post">
                   <input type="hidden" name="_method" value="patch">
                   <input type="hidden" name="building_name" value="<%= building.name %>">
                   <input type="submit" value="<%= building.action.capitalize %>">
                 </form>
  -            <% end %>
  -          </td>
  +            </td>
  +          <% end %>
           </tr>
         <% end %>
       <% end %>
  
positive.code:   <tr>
      <td>Name:</td>
      <td><%= @tribe.name %></td>
      <td></td>
    </tr>
    <tr>
      <td>Land:</td>
  
negative.code:     <tr>
        <th>#</th>
        <th>Building Type</th>
      </tr>
    </thead>
    <tbody>
  