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 29 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 13 0+0+8] children: not-inline
      BlockContainer <div> at [8,8] [0+0+0 784 0+0+0] [0+0+0 13 0+0+0] children: inline
        frag 0 from TextNode start: 1, length: 1, rect: [8,8 11.59375x13] baseline: 10.390625
            "A"
        TextNode <#text> (not painted)
      BlockContainer <(anonymous)> at [8,21] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x29]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x13]
      PaintableWithLines (BlockContainer<DIV>) [8,8 784x13]
      PaintableWithLines (BlockContainer(anonymous)) [8,21 784x0]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x29] (z-index: auto)
