Viewport <#document> at [0,0] [0+0+0 800 0+0+0] [0+0+0 600 0+0+0] children: not-inline
  BlockContainer <html> at [0,0] [0+0+0 800 0+0+0] [0+0+0 134 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 118 0+0+8] children: inline
      frag 0 from TextNode start: 1, length: 3, rect: [8,108 27.15625x18] baseline: 13.796875
          "foo"
      BlockContainer <div.a> at [8,8] floating [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] [BFC] children: not-inline
      TextNode <#text> (not painted)
      BreakNode <br.b> (not painted)
      TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x134]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x118]
      PaintableWithLines (BlockContainer<DIV>.a) [8,8 100x100]
      TextPaintable (TextNode<#text>)

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x134] [children: 0] (z-index: auto)
