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 78x28
          RenderText {TEXT} at (14,14) size 78x28
            text run at (14,14) width 78: "xxxxxx "
        RenderText {TEXT} at (92,14) size 72x28
          text run at (92,14) width 72: "xxxxxx"
        RenderInline {SPAN} at (0,0) size 78x28
          RenderText {TEXT} at (164,14) size 78x28
            text run at (164,14) width 78: " xxxxxx"
        RenderInline {SPAN} at (0,0) size 0x28
        RenderText {TEXT} at (0,0) size 0x0
selection is RANGE:
start:      position 0 of child 2 {TEXT} of root {DIV}
upstream:   position 7 of child 1 {TEXT} of child 1 {SPAN} of root {DIV}
downstream: position 0 of child 2 {TEXT} of root {DIV}
end:        position 6 of child 2 {TEXT} of root {DIV}
upstream:   position 6 of child 2 {TEXT} of root {DIV}
downstream: position 0 of child 1 {TEXT} of child 3 {SPAN} of root {DIV}
