anchor.diff: +<div class="subnav">
  +  <div class="container d-fl-r jc-sb">
  +    <div class="subnav-left">
  +      <div class="subnav-item"><%= @activity.title %></div>
  +      <div class="subnav-item"><%= @activity.question_sets.count %> Question Sets</div>
  +      <div class="subnav-item"><%= @activity.questions.count %> Questions</div>
  +    </div>
  +    <div class="subnav-right">
  +      <div class="subnav-item"><%= link_to 'Play', play_activity_path(@activity) %></div>
  +      <div class="subnav-item"><%= link_to 'Edit', edit_activity_path(@activity) %></div>
  +      <div class="subnav-item"><%= link_to 'Destroy', @activity, method: :delete, data: { confirm: 'Are you sure?' } %></div>
  +    </div>
  +  </div>
  +</div>
  +
   <div class="container">
  -  <h1><%= @activity.title %></h1>
     <p><%= @activity.article[0..280] + "..." %></p>
  -  <p><%= @activity.questions.count %></p>
  -  <p><%= link_to 'Play', play_activity_path(@activity) %></p>
  -  <p><%= link_to 'Edit', edit_activity_path(@activity) %></p>
  -  <p><%= link_to 'Destroy', @activity, method: :delete, data: { confirm: 'Are you sure?' } %></p>
   
     <h3>Question Sets</h3>
   
  
positive.code:             <th>Prompt</th>
              <th>Questions</th>
              <th>Order</th>
              <th colspan="3"></th>
            </tr>
          </thead>
  
  
negative.code:               <td><%= question_set.questions.count %></td>
                <td><%= question_set.order %></td>
                <td><%= link_to 'Show', question_set %></td>
                <td><%= link_to 'New Question', new_question_set_question_path(question_set) %></td>
                <td><%= link_to 'Edit', edit_question_set_path(question_set) %></td>
                <td><%= link_to 'Destroy', question_set, method: :delete, data: { confirm: 'Are you sure?' } %></td>
              </tr>
  