layer at (0,0) size 800x600
  LayoutView at (0,0) size 800x600
layer at (0,0) size 800x50
  LayoutBlockFlow {HTML} at (0,0) size 800x50
    LayoutBlockFlow {BODY} at (8,16) size 784x18
      LayoutBlockFlow {FORM} at (0,0) size 784x18 [bgcolor=#00FF00]
        LayoutBlockFlow {P} at (0,0) size 784x18
          LayoutText {#text} at (0,0) size 308x17
            text run at (0,0) width 308: "The paragraph should have a green background."