layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (8,8) size 784x584
layer at (20,8) size 115x115 clip at (20,8) size 100x100
  RenderBlock (positioned) {DIV} at (20,8) size 115x115
    RenderBlock {SPAN} at (0,0) size 100x100 [bgcolor=#008000]
layer at (140,8) size 115x115 clip at (140,8) size 100x100
  RenderFlexibleBox (positioned) {DIV} at (140,8) size 115x115
    RenderBlock {SPAN} at (0,0) size 100x100 [bgcolor=#008000]
