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  LayoutView at (0,0) size 800x600
layer at (0,0) size 800x36
  LayoutBlockFlow {HTML} at (0,0) size 800x36
    LayoutBlockFlow {BODY} at (8,-2) size 784x40
      LayoutBlockFlow {P} at (-10,0) size 804x40 [color=#000080]
        LayoutBR {BR} at (0,0) size 0x19
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          text run at (0,20) width 277: "  This page should have a horizontal scroll bar."