           ^foo == ^bar;
         }
       """
-    
+
     equivalent "3 level moderate",
       """
-        
+
         @if foo > 20 {
-        
+
         .outer {
-                
+
           .box {
             20 * foo + 100 == bye - bar / 10;
             .inner {

            ]
            ['==',['get','foo'],0]
          ]
      expect(scope(ast)).to.eql commands: 
        [        
          ['rule',['.','box'],
            [
              ['rule',['.','box'],

                  ]
                ]
              ]
            ]
          ]
      expect(scope(ast)).to.eql commands:
        [
          ['==',['get','foo'],0]
          ['rule',['.','box'],
