Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x0 [BFC] children: not-inline
    BlockContainer <body.outer> at (8,8) content-size 0x0 positioned [BFC] children: not-inline
      BlockContainer <div.inner> at (9,9) content-size 0x0 positioned [BFC] children: not-inline

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x0]
    PaintableWithLines (BlockContainer<BODY>.outer) [8,8 0x0] overflow: [8,8 2x2]
      PaintableWithLines (BlockContainer<DIV>.inner) [8,8 2x2]
