anchor.diff:  section.code-samples.column-contain.hidden-xs
     h2.hidden-visually Code Samples
     .code-sample-block.first-sample-block
  -      h4.code-header Define view classes
  +      h3.code-header Define view classes
         pre.prettyprint
           code.notranslate.
             var SingleLink = Marionette.ItemView.extend({
  
positive.code:           });
  
    .code-sample-block.second-sample-block
      h4.code-header Pass in data
      pre.prettyprint
        code.notranslate.
          var list = new Backbone.Collection([
  
negative.code:         })).render();
  
    .code-sample-block.code-results-block
      h3.code-header.code-header-results Results
      .result
        ul
          li
  