layer at (0,0) size 800x600
  RenderCanvas at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (8,8) size 784x584
      RenderBlock {DIV} at (0,0) size 784x56 [border: (2px solid #FF0000)]
        RenderInline {SPAN} at (0,0) size 140x28
          RenderText {TEXT} at (14,14) size 69x28
            text run at (14,14) width 69: "foo bar"
          RenderInline {SPAN} at (0,0) size 31x28
            RenderText {TEXT} at (83,14) size 31x28
              text run at (83,14) width 31: "bar"
          RenderText {TEXT} at (114,14) size 40x28
            text run at (114,14) width 40: " baz"
        RenderText {TEXT} at (0,0) size 0x0
selection is CARET:
start:      position 3 of child 1 {TEXT} of child 2 {SPAN} of child 2 {SPAN} of root {DIV}
upstream:   position 3 of child 1 {TEXT} of child 2 {SPAN} of child 2 {SPAN} of root {DIV}
downstream: position 0 of child 3 {TEXT} of child 2 {SPAN} of root {DIV}
