anchor.diff:    }
   
     render() => react.div({}, [
  -        react.div({
  -          'key': 'string-refs'
  -        }, [
  +        react.h1({'key': 'h1'}, 'Refs'),
  +        react.div({'key': 'string-refs'}, [
             react.h2({'key': 'string-h2'}, "String refs"),
             react.h4({'key': 'string-h4'}, "<input>"),
             react.form({
               'key': 'stringRefInputForm',
  -            'className': 'form-inline',
  +            'className': 'form-inline'
             }, [
               react.input({
                 'key': 'string-input',
  
positive.code:             }, 'Increment child value'),
            ]),
          ]),
          react.div({
            'key': 'forward-refs'
          }, [
            react.h2({'key': 'h2-forward'}, "Create / Forward refs"),
            react.h4({'key': 'h4-forward-input'}, "<input>"),
            InputComponentForm({
  
negative.code:           react.h4({'key': 'string-h4-child'}, "ChildComponent"),
            react.form({
              'key': 'stringRefChildComponentForm',
              'className': 'form-inline'
            }, [
              ChildComponent({'key': 'string-child', "ref": "childRef"}),
              '\u00a0',
              react.button({
                'type': 'button',
  