anchor.diff:  
   (defmacro standard-pdf-iframe (&key pdf)
     `(with-html-output (*standard-output* nil :indent t)
  -     (:div :class "box box-default"
  +     (:div :class "box box-default collapsed-box"
   	   (:div :class "box-header with-border"
   		 "PDF"
   	   (:div :class "box-tools pull-right"
  
positive.code:      (:aside :class "main-sidebar"
  	     (:section :class "sidebar"
  		       (:div :class "user-panel"
  			     (:p "Kek"))
  		       (:ul :class "sidebar-menu"
  			    (:li :class "header" "Essential")
  			    (:li :class "treeview active"
  
negative.code: 	     (:title ,title)
  	    (:script :src "http://code.jquery.com/jquery-latest.min.js")
  	    (:script :src "bootstrap/js/bootstrap.min.js")
  	    (:script :src "dist/js/app.min.js")
  	    (:script :src "plugins/slimScroll/jquery.slimscroll.min.js")
  	    (:script :src "plugins/fastclick/fastclick.js")
  