anchor.diff:  
   ;; now with cascading 
         ("#foo") (:length "50px" my-css-var my-macroed-css-var)  
  -      (("#foo") (:width "50px" :float "left"  my-css-var my-macroed-css-var))))
  +      (("li") (:width "50px" :float "left"  my-css-var my-macroed-css-var))))
   
   "
   #foo {
  
positive.code: border:1px solid red;
  }
  
  #foo #foo {
  width:50px;
  float:left;
  margin:50px 30px;
  
negative.code: ;; comments end up looking like this /* comment text :*/; notice the
  ;; colon before the closing */
  
  
  