anchor.diff:                      // TODO: Ditch `expected-diff-img` as we have multiple images now
                       D.IMG({
                         'data-compare-type': 'diff', src: '/images/' + imgSet.diffImg,
  -                      height: imgHeight, className: 'expected-diff-img'
  +                      height: imgHeight, class: 'expected-diff-img'
                       })
                     ]),
                     D.TD([
  
positive.code:               // TODO: Show match pass/fail status
                D.A({
                  href: 'javascript:void 0;', 'data-toggle': 'collapse',
                  'data-target': '[data-id="' + imgSetId + '"]',
                  'aria-expanded': 'false', 'aria-controls': imgSetId
                }, imgSetHumanName),
                D.TABLE({
                  className: 'collapse', 'data-id': imgSetId
                }, [
                  D.TR([
                    D.TD('Current:'),
  
negative.code:         var imgHeight = '250';
          var imageSets = window.imageSets;
          var docFrag = document.createDocumentFragment();
          imageSets.forEach(function createImageSet (imgSet, i) {
            // Create local variables for our image set
            var imgSetId = imgSet.refImg;
            var imgSetHumanName = imgSet.refImg;
  