anchor.diff:      </div>
       <div class="modal-footer">
         <%= f.submit (@page_collection.user == current_user ? 'Add' : 'Submit') + ' page', class: "btn #{PageCollection.color} white-text" %>
  +
  +      <a href="#!" class="modal-close waves-effect waves-green btn-flat left">Nevermind</a>
       </div>
     </div>
   <% end %>
positive.code: <%= form_for PageCollectionSubmission.new do |f| %>
    <div id="share-page-modal" class="modal modal-fixed-footer">
      <div class="modal-content">
        <h4><%= @page_collection.user == current_user ? 'Add' : 'Submit' %> a page</h4>
        <br />
        <% if @submittable_content.values.flatten.any? %>
            <div class="row">
              <div class="col s12 m12 l12">
                <%= f.hidden_field :page_collection_id, value: @page_collection.id %>
                <div class="input-field">
                  <%= f.select :content do %>
                    <% @submittable_content.each do |content_type, content_list| %>
                      <optgroup label="<%= content_type.pluralize %>">
  
negative.code:     </div>
      <div class="col s12 m12 l5">
        <%# render partial: 'page_collections/quick_add' %>
        <a class="waves-effect hoverable waves-light btn btn-large modal-trigger blue" href="#share-page-modal" style="width: 100%; margin-top: 0.5em;">
          <i class="material-icons <%= PageCollection.color %>-text text-darken-2 left"><%= PageCollection.icon %></i>
          <div class="left">
            <%= @page_collection.user == current_user ? 'Add' : 'Submit' %> a page
            <span class="hide-on-small-only">
              to this Collection
            </span>
          </div>
        </a>
        <br /><br />
  
        <div class="grey-text uppercase">In this collection</div>
  
        <div class="collection">
          <% @page_collection.page_types.each do |pt| %>
            <% klass = pt.constantize %>
            <%= link_to(send(pt.downcase.pluralize + '_page_collection_path', @page_collection), class: "collection-item #{klass.color} white-text") do %>
  