   #        """
   #      ,
   #        {
-  #          selectors: [
-  #            '#box1'
-  #            '#box2'
-  #            '::window'
-  #          ]
   #          commands: [
   #            ['eq', 
   #              ['plus',['get$', 'width', ['$id', 'box1']], ['get$', 'width', ['$virtual', 'area']]], 

          """
          ,
            {
              selectors: []
              commands: [
                ['eq', ['get', '[left]'], ['number', 0.4]]
              ]

          """
          ,
            {
              commands: [
                ['eq', ['get', '[left]'], ['plus', ['number', 0], ['number', 1]]]
              ]
