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 784x208 [border: (2px solid #FF0000)]
        RenderBlock {DIV} at (14,38) size 756x132
          RenderBlock {BLOCKQUOTE} at (40,0) size 676x28
            RenderText {TEXT} at (0,0) size 42x28
              text run at (0,0) width 42: "Test"
          RenderBlock (anonymous) at (0,52) size 756x28
            RenderText {TEXT} at (0,0) size 12x28
              text run at (0,0) width 12: "x"
            RenderBR {BR} at (0,0) size 0x0
          RenderBlock {BLOCKQUOTE} at (40,104) size 676x28
            RenderText {TEXT} at (0,0) size 42x28
              text run at (0,0) width 42: "Test"
selection is CARET:
start:      position 1 of child 3 {TEXT} of child 2 {DIV} of root {DIV}
upstream:   position 1 of child 3 {TEXT} of child 2 {DIV} of root {DIV}
downstream: position 0 of child 4 {BR} of child 2 {DIV} of root {DIV}