anchor.diff:           ("#controls"
             :font-size "16px"
             :font-weight "700"
  -          :background-color "rgb(80,80,80)"
  +          :background-color "rgb(60,60,60)"
             :padding-left "5px"
             :overflow "hidden"
             :white-space "nowrap"
  
positive.code:    (style 
      #.(cl-css:css
         '((body
            :background "lightgray"
            :font-size "14px"
            :color "black"
            :padding 0
  
negative.code:          (".vi-insert-mode"
            :background-color "#37a8e4")
           ("#url"
            :color "white"
            :background-color "rgb(110,110,110)"
            :min-width "100px"
            :text-overflow "ellipsis"
            :overflow-x "hidden"
  