anchor.diff:  	 	</ul>
   </div>
   <div>
  -	<h3>Locations</h3>
  -	<%= link_to 'Add to location', new_book_location_url(book: @book.id), {class: 'btn btn-success'} %>
  -		<ul>
  +	<div class="show_category_header">
  +		<h3 class="heading">Locations</h3>
  +		<div class="btn_group">
  +			<%= link_to 'Add to location', new_book_location_url(book: @book.id), {class: 'btn btn-success'} %>
  +		</div>
  +	</div>
  +		<ul class="show_categories_list">
   			<% @book.book_locations.each do |book_location| %>
   				<li>
   					<%= link_to "#{book_location.location} - #{book_location.calculated_call_num}", edit_polymorphic_url(book_location, book: @book.id) %>
  
positive.code: 	 	</ul>
  </div>
  <div>
  	<h3>Ratings</h3>
  		<%= link_to 'Add Rating', new_rating_url(book: @book.id), {class: 'btn btn-success'} %>
  		<ul>
  			<% @book.ratings.each do |rating| %>
  				<li>
  					<%= link_to rating, rating %>
  
negative.code: <p><%= @book.genre %></p>
  <p><%= @book.pre_rating %></p>
  <div>
  	<div class="show_category_header">
  		<h3 class="heading">Lists</h3>
  		<div class="btn_group">
  			<%= link_to 'Add to list', new_list_book_url(book: @book.id), {class: 'btn btn-success'} %>
  		</div>
  	</div>
  		<ul class="show_categories_list">
  			<% @book.lists.each do |list| %>
  				<% list_book = (list.list_books & @book.list_books)[0] %>
  				<li>
  