layer at (0,0) size 800x600
  RenderView 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 784x18
        RenderText {#text} at (0,0) size 8x18
          text run at (0,0) width 8: "x"
        RenderText {#text} at (8,0) size 21x18
          text run at (8,0) width 21: "foo"
        RenderText {#text} at (29,0) size 8x18
          text run at (29,0) width 8: "x"
caret: position 3 of child 1 {#text} of child 0 {DIV} of child 0 {BODY} of child 0 {HTML} of document
