layer at (0,0) size 800x600
  RenderCanvas at (0,0) size 800x600
layer at (0,0) size 800x45
  RenderBlock {HTML} at (0,0) size 800x45
    RenderBody {BODY} at (8,14) size 784x17
      RenderBlock {P} at (0,0) size 784x17
        RenderInline {SPAN} at (0,0) size 177x17 [color=#008000]
          RenderText {TEXT} at (0,0) size 177x17
            text run at (0,0) width 177: "This line should be green."
