layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x430
  RenderBlock {HTML} at (0,0) size 800x430
    RenderBody {BODY} at (8,10) size 784x410
      RenderBlock {DIV} at (10,0) size 200x200 [bgcolor=#008000]
      RenderBlock {DIV} at (10,210) size 200x200 [bgcolor=#008000]