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+0 332 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [0,0] [0+0+0 800 0+0+0] [0+0+0 332 0+0+0] children: not-inline
      Box <div.grid> at [0,0] [0+0+0 800 0+0+0] [0+0+0 332 0+0+0] [GFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <p> at [0,16] [0+0+0 300 0+0+0] [16+0+0 300 0+0+16] [BFC] children: inline
          frag 0 from SVGSVGBox start: 0, length: 0, rect: [0,16 300x300] baseline: 300
          SVGSVGBox <svg> at [0,16] [0+0+0 300 0+0+0] [0+0+0 300 0+0+0] [SVG] children: not-inline
            SVGGeometryBox <circle> at [0,16] [0+0+0 303.03125 0+0+0] [0+0+0 303.03125 0+0+0] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
      BlockContainer <(anonymous)> at [0,332] [0+0+0 800 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 800x332]
    PaintableWithLines (BlockContainer<BODY>) [0,0 800x332]
      Paintable (Box<DIV>.grid) [0,0 800x332]
        PaintableWithLines (BlockContainer<P>) [0,16 300x300]
          SVGSVGPaintable (SVGSVGBox<svg>) [0,16 300x300]
            SVGPathPaintable (SVGGeometryBox<circle>) [0,16 303.03125x303.03125]
      PaintableWithLines (BlockContainer(anonymous)) [0,332 800x0]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x332] (z-index: auto)
