anchor.diff:  
           cozy.control.widget.toggle({
             region: 'top.toolbar.left',
  -          template: '<button class="button--sm" data-toggle="button" aria-label="3-D Model">3-D Model</button>',
  +          template: '<button class="button--sm" data-toggle="button" aria-label="3D Model">3D Model</button>',
             states: [{
               stateName: 'open-webgl',
               onClick: function(btn, reader) {
  
positive.code:       #gameContainer {
          margin-left: auto !important;
          margin-right: auto !important;
        }
      </style>
    <% end %>
  
negative.code: @unity_loader = "/webgl/#{webgl_id}/#{webgl.unity_loader}"
  @unity_json = "/webgl/#{webgl_id}/#{webgl.unity_json}"
  %>
      <!-- browser detection here -->
      <script src="<%= @unity_progress %>"></script>
      <script src="<%= @unity_loader %>"></script>
  
      <style type="text/css">
        .panel-open.panel-right .cozy-module-book-cover {
          width: 50vw
  