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 66 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 50 0+0+8] children: not-inline
      BlockContainer <div#a> at [8,8] [0+0+0 100 0+0+684] [0+0+0 50 0+0+0] children: inline
        frag 0 from BlockContainer start: 0, length: 0, rect: [8,8 100x50] baseline: 50
        TextNode <#text> (not painted)
        BlockContainer <div#b> at [8,8] inline-block [0+0+0 100 0+0+0] [0+0+0 50 0+0+0] [BFC] children: inline
          frag 0 from SVGSVGBox start: 0, length: 0, rect: [8,8 100x50] baseline: 50
          TextNode <#text> (not painted)
          SVGSVGBox <svg> at [8,8] [0+0+0 100 0+0+0] [0+0+0 50 0+0+0] [SVG] children: inline
            TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x66]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x50]
      PaintableWithLines (BlockContainer<DIV>#a) [8,8 100x50]
        PaintableWithLines (BlockContainer<DIV>#b) [8,8 100x50]
          SVGSVGPaintable (SVGSVGBox<svg>) [8,8 100x50]

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x66] [children: 0] (z-index: auto)
