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+0 116 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 100 0+0+8] children: inline
      InlineNode <span> at [8,48] [0+0+0 135.15625 0+0+0] [0+0+0 100 0+0+0]
        frag 0 from TextNode start: 0, length: 4, rect: [8,48 35.15625x18] baseline: 13.796875
            "foo "
        frag 1 from BlockContainer start: 0, length: 0, rect: [43.15625,8 100x100] baseline: 54.296875
        TextNode <#text> (not painted)
        BlockContainer <span.thing> at [43.15625,8] inline-block [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] [BFC] children: not-inline

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x116]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x100]
      PaintableWithLines (InlineNode<SPAN>) [8,48 135.15625x100]
        TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<SPAN>.thing) [43.15625,8 100x100]

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x116] [children: 0] (z-index: auto)
