anchor.diff:    <tr>
       <td>Name:</td>
       <td><%= @tribe.name %></td>
  -    <td></td>
  +    <td class="input_col"></td>
     </tr>
     <tr>
       <td>Land:</td>
       <td><%= @tribe.land %> square mile<%= "s" if @tribe.land > 1 %></td>
  -    <td>
  +    <td class="input_col">
         <form action="/tribes/<%= @tribe.slug %>/land" method="post">
           <input type="hidden" name="_method" value="patch">
           <input type="number" name="amount">
  
positive.code:   <tr>
      <td>Total population:</td>
      <td><%= @tribe.population.total %></td>
      <td></td>
    </tr>
    <tr>
      <td>Population density:</td>
      <td><%= @tribe.population.density %>/mi<sup>2</sup></td>
      <td></td>
    </tr>
    <tr>
      <td>Warriors:</td>
      <td><%= @tribe.warriors %></td>
      <td>
        <% if @tribe.has_building?("barracks") %>
          <form action="/tribes/<%= @tribe.slug %>/warriors" method="post">
            <input type="hidden" name="_method" value="patch">
  
negative.code:       <tr>
          <td></td>
          <td><em>You have no buildings.</em></td>
          <td class="input_col"></td>
        </tr>
      <% else %>
        <% @tribe.buildings.uniq.each do |building| %>
          <tr>
            <td><%= @tribe.count_building(building.name) %></td>
            <td><%= building.name %></td>
            <td class="input_col">
              <% if building.usable? %>
                <form action="/tribes/<%= @tribe.slug %>/buildings" method="post">
                  <input type="hidden" name="_method" value="patch">
  