layer at (0,0) size 800x600
  LayoutView at (0,0) size 800x600
layer at (0,0) size 800x600
  LayoutBlockFlow {HTML} at (0,0) size 800x600
    LayoutBlockFlow {BODY} at (8,8) size 784x576
      LayoutBlockFlow {P} at (0,0) size 784x18
        LayoutText {#text} at (0,0) size 59x17
          text run at (0,0) width 59: "This is a "
        LayoutInline {I} at (0,0) size 58x17
          LayoutText {#text} at (58,0) size 58x17
            text run at (58,0) width 58: "test page"
        LayoutText {#text} at (115,0) size 5x17
          text run at (115,0) width 5: "."