layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x8
  RenderBlock {HTML} at (0,0) size 800x8
    RenderBody {BODY} at (8,8) size 784x0
layer at (8,8) size 100x100 clip at (0,0) size 0x0
  RenderBlock (positioned) {DIV} at (8,8) size 100x100 [border: (50px solid #FF0000)]
layer at (8,8) size 100x100 clip at (0,0) size 0x0
  RenderBlock (positioned) {DIV} at (8,8) size 100x100 [border: (50px solid #008000)]