layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x216
  RenderBlock {HTML} at (0,0) size 800x216
    RenderBody {BODY} at (8,8) size 784x200
      RenderBlock {DIV} at (0,0) size 784x200
        RenderBlock {DIV} at (0,0) size 784x100
        RenderBlock {DIV} at (0,100) size 100x100 [bgcolor=#008000]
layer at (8,8) size 100x100
  RenderBlock {DIV} at (0,0) size 100x100 [bgcolor=#FFFFFF]
    RenderBlock {DIV} at (0,0) size 100x100