layer at (0,0) size 800x600
  RenderCanvas at (0,0) size 800x600
layer at (0,0) size 800x50
  RenderBlock {HTML} at (0,0) size 800x50
    RenderBody {BODY} at (8,8) size 784x34
      RenderBlock {DIV} at (0,0) size 784x17
        RenderText {TEXT} at (0,0) size 167x17
          text run at (0,0) width 167: "This should be unstyled."
      RenderBlock {DIV} at (0,17) size 784x17 [bgcolor=#008000]
        RenderText {TEXT} at (0,0) size 261x17
          text run at (0,0) width 261: "This should have a green background."
