this page rendering

[rrandresf@xxxxxxxxx (=?utf-8?q?Andr=C3=A9s_Ram=C3=ADrez?=)]

Hi.

I am visiting this page:
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https://cheryllium.wordpress.com/2014/04/13/commonqt-tutorial-4/
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an this part is not rendered right
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(defclass status-bar-app () 
  ((name-edit :accessor name-edit) 
   (reverse-button :accessor reverse-button)
   (capital-button :accessor capital-button)
   (result-label :accessor result-label))
  (:metaclass qt-class)
  (:qt-superclass "QMainWindow")
  (:slots ("reverse-name()" reverse-name)
      ("capitalize-name()" capitalize-name)))

(defmethod initialize-instance :after 
  ((instance status-bar-app) &key)
   (new instance) 
   (init-ui instance))
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I have tried the same in the (webmacs browser, eww) and it renders fine.
BR