anchor.diff:  
   <div class="row">
     <div class="span5">
  -    <%= link_to 'New Player', new_player_path %>
  -
  -    <h1>Ranking</h1>
  +    <h1>Ranking <%= link_to 'New Player', new_player_path, class: "btn btn-success" %></h1>
   
       <table class="table table-striped table-hover">
         <thead>
  
positive.code:             <td><%= game.yellow_front_player.name %></td>
              <td><%= game.yellow_back_player.name %></td>
              <td><%= game.result ? "YELLOW" : "BLACK" %></td>
              <td><%= link_to 'Edit', edit_game_path(game) %></td>
              <td><%= link_to 'Destroy', game, method: :delete, data: {confirm: 'Are you sure?'} %></td>
            </tr>
        <% end %>
        </tbody>
  
negative.code:             <td><%= player.name %></td>
              <td><%= player.mean.round %></td>
              <td><%= player.deviation.round %></td>
              <td><%= link_to 'Edit', edit_player_path(player), class: "btn btn-mini" %></td>
            </tr>
        <% end %>
        </tbody>
      </table>
    </div>
    <div class="span6 offset1">
      <h1>Games <%= link_to 'Record new', new_game_path, class: "btn btn-success" %></h1>
  
      <table class="table table-striped table-hover">
        <thead>
  