anchor.diff:      <%= image_tag "data_viz_ana.png", :class=>"img-responsive centered" %>
     <% end %>
   
  -  <h2 class="sr-only">Data Visualization</h2>
  +  <h2 class="sr-only">Data Visualization and Analytics</h2>
   
     <p>
       <i class="fa fa-check-square-o fa-3x"></i>
  
positive.code:     <strong>Hours: TBA</strong>
    </p>
  
    <blockquote class="jumbotron-quote">
      <p>
        <strong>Supplemental Lab Sessions</strong><br>
  
  
negative.code: </div>
  
  <div class="row">
  
    <p>
      <h4>Course Outcomes:</h4>
  