layer at (0,0) size 800x600
  LayoutView at (0,0) size 800x600
layer at (0,0) size 800x52
  LayoutBlockFlow {HTML} at (0,0) size 800x52
    LayoutBlockFlow {BODY} at (8,16) size 784x20
      LayoutBlockFlow {FORM} at (0,0) size 784x20 [bgcolor=#00FF00]
        LayoutBlockFlow {P} at (0,0) size 784x20
          LayoutText {#text} at (0,0) size 291x19
            text run at (0,0) width 291: "The paragraph should have a green background."