Viewport <#document> at [0,0] [0+0+0 800 0+0+0] [0+0+0 600 0+0+0] [BFC] children: not-inline
  BlockContainer <html> at [0,0] [0+0+0 800 0+0+0] [0+0+0 48 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 0 0+0+8] children: inline
      BlockContainer <div.r> at [8,-2] floating [0+0+0 50 0+0+0] [-10+0+0 50 0+0+0] [BFC] children: not-inline
      TextNode <#text> (not painted)
      BlockContainer <div.g> at [58,-2] floating [0+0+0 50 0+0+0] [-10+0+0 50 0+0+0] [BFC] children: not-inline
      TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x48]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x0]
      PaintableWithLines (BlockContainer<DIV>.r) [8,-2 50x50]
      PaintableWithLines (BlockContainer<DIV>.g) [58,-2 50x50]

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x48] [children: 0] (z-index: auto)
