▽
└─◻ Tag name
  ╟─◇ = foo
  ║ ┖─◉ Push element: >
  ║   └─◻ Tag name
  ║     ╙─◇ = bar
  ║       ┖─◁ #0 [0,0,2] value 1
  ╙─◇ = baz
    ┖─◉ Push element: +
      └─◻ Tag name
        ╙─◇ = qux
          ┖─◁ #1 [0,0,2] value 2