anchor.diff:      <div class="card-footer bg-mdb-color-lighten-7 text-center">
         <div class="row">
           <% if medium.video_stream_link.present? %>
  -          <div class="col-3 col-lg-2">
  +          <div class="col-3">
               <a href="<%= medium.video_stream_link %>"
                  class="no-deco" target="_blank">
                 <i class="material-icons mediabox text-secondary"
  
positive.code:           </div>
          <% end %>
          <% if medium.manuscript.present? %>
            <div class="col-3 col-lg-2">
              <a href="<%= medium.manuscript_url %>"
                 class="no-deco" target="_blank">
                <i class="material-icons mediabox text-secondary"
  
negative.code:           </div>
          <% end %>
          <% if medium.extras_link.present? %>
            <div class="col-3">
              <a href="<%= medium.extras_link %>"
                 class="no-deco" target="_blank">
                <i class="material-icons mediabox text-secondary"
  