anchor.diff:  
       <% case %>
       <% when queens.include?(cb.text) %>
  -     <font color = "#0b6121"> <%= cb.check_box %><%= cb.label %></font>
  +    <font color = "#0b6121"> <%= cb.check_box %><%= cb.label %></font>
   
       <% when brooklyn.include?(cb.text) %>
         <font color = "green"><%= cb.check_box %><%= cb.label %></font>
  
positive.code: 
      <% end %>
  
  
      <% end %>
  
  </font>
  
negative.code: 
  <font size="3"> 
    <%= f.collection_check_boxes(:category_ids, @categories, :id, :name) do |cb| %>
        <%=cb.check_box%><%= cb.label %> |
      <%end%> </font> <br/>
  
      <%= f.submit 'Save'%>
  