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 17 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 1 0+0+8] children: not-inline
      BlockContainer <div> at [8,8] [0+0+0 784 0+0+0] [0+0+0 1 0+0+0] children: inline
        frag 0 from TextNode start: 0, length: 21, rect: [8,8 0x1] baseline: 0.796875
            "should not be visible"
        TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x17]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x1]
      PaintableWithLines (BlockContainer<DIV>) [8,8 784x1]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x17] (z-index: auto)
