layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x124
  RenderBlock {HTML} at (0,0) size 800x124
    RenderBody {BODY} at (8,16) size 784x92
      RenderBlock {P} at (0,0) size 784x20 [bgcolor=#00FF00]
        RenderText {#text} at (0,0) size 312x19
          text run at (0,0) width 312: "This paragraph should have a green background."
      RenderBlock {DIV} at (0,36) size 784x56
        RenderBlock (anonymous) at (0,0) size 784x20
          RenderText {#text} at (0,0) size 242x19
            text run at (0,0) width 242: "This div contains only one paragraph."
        RenderBlock {P} at (0,36) size 784x20
          RenderText {#text} at (0,0) size 225x19
            text run at (0,0) width 225: "This paragraph should be unstyled."
