Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x16 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x0 children: not-inline
      BlockContainer <div> at (8,8) content-size 10x0 children: inline
        frag 0 from SVGSVGBox start: 0, length: 0, rect: [8,8 100x100] baseline: 100
        SVGSVGBox <svg> at (8,8) content-size 100x100 [SVG] children: not-inline

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x16] overflow: [0,0 800x108]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x0] overflow: [8,8 100x100]
      PaintableWithLines (BlockContainer<DIV>) [8,8 10x0] overflow: [8,8 100x100]
        SVGSVGPaintable (SVGSVGBox<svg>) [8,8 100x100]
