anchor.diff:  
                 <div class="post_field post_tags">
                   <%= f.association :tags, input_html: { name: "#{@post.class.name.split('::').last.tableize.singularize}[tag_list][]", class: 'chosen-select tags-input', multiple: true } %>
  +              </div>
  +
  +              <div class="row">
  +                <div class="col-sm-12">
  +                  <%# byebug %>
  +                  <!-- @post.featured_media[:retina_dimensions][:file] -->
  +                  <%= image_tag "#{@post.featured_media.file.header_img.url}", style: "max-width:19%" %>
  +                  <%= image_tag "#{@post.featured_media.file.header_img_east.url}", style: "max-width:19%" %>
  +                  <%= image_tag "#{@post.featured_media.file.header_img_west.url}", style: "max-width:19%" %>
  +                  <%= image_tag "#{@post.featured_media.file.header_img_south_east.url}", style: "max-width:19%" %>
  +                  <%= image_tag "#{@post.featured_media.file.header_img_south_west.url}", style: "max-width:19%" %>
  +                  <% @headers = [:default, :derecha, :izquierda] %>
  +                  <%= f.input :the_header_img, collection: @headers, prompt: "Elige header" %>
  +                </div>
                 </div>
   
                 <div class="row">
  
positive.code:                 <div class="row">
                    <div class="col-sm-10 col-sm-offset-1">
                      <div class="row">
                        <div class="col-sm-6">
                          <div class="well text-center featured_image_block <%= 'has-image' if @post.featured_media %>">
                            <%= f.input :featured_media_id, as: :hidden, input_html: { id: "featured_media_id" } %>
                            <div id="featured_media_container" class="image_container">
  
negative.code:                           </button>
                            <i class="icon-st-icons-images select_featured_image"></i>
                            <div class="select_featured_image">
                              <%= link_to "Elegir Imagen Para Titular", "#", class: "btn btn-primary btn-outline text-lighter", id: "featured_media_button" %>
                            </div>
                          </div>
                        </div>
  