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 784x584 [color=#FFFFFF] [bgcolor=#008000]
      LayoutText {#text} at (0,0) size 316x17
        text run at (0,0) width 316: "This text should be white on a green background."