code: function () {
          var spans = []
          for (var index = 0, length = baseFonts.length; index < length; index++) {
            var s = createSpan()
            s.style.fontFamily = baseFonts[index]
            baseFontsDiv.appendChild(s)
            spans.push(s)
          }
          return spans
        }
docs: creates spans for the base fonts and adds them to baseFontsDiv