anchor.diff:               :overflow "hidden"
                :white-space "nowrap"
                :z-index "3"
  -             )
  +             :flex-basis "6em")
               ("#url"
                :background-color theme:primary
                :color theme:on-primary
  
positive.code:              :clip-path "polygon(10px 0, 100% 0, 100% 100%, 10px 100%, 0% 50%)"
               :margin-left "-10px")
              ("#container"
               :display "grid"
               ;; Columns: controls, url, tabs, modes
               :grid-template-columns "90px minmax(auto, 30ch) 1fr 220px"
               :overflow-y "hidden")
              ("#controls"
               :background-color theme:secondary
  
negative.code:              :padding-right "10px"
               :padding-left "15px"
               :z-index "2"
               :flex-grow "3"
               :flex-shrink "2"
               :flex-basis "10em")
              ("#tabs"
               :background-color theme:secondary
               :color theme:on-secondary
  