Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x66 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x50 children: not-inline
      BlockContainer <div.box> at (8,58) content-size 784x0 positioned children: not-inline
        BlockContainer <div.inner> at (8,58) content-size 784x50 positioned [BFC] children: not-inline

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x66] overflow: [0,0 800x108]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x50] overflow: [8,8 784x100]
      PaintableWithLines (BlockContainer<DIV>.box) [8,8 784x50] overflow: [8,8 784x100]
        PaintableWithLines (BlockContainer<DIV>.inner) [8,58 784x50]
