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 48 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 32 0+0+8] children: not-inline
      Box <div> at [8,8] [0+0+0 784 0+0+0] [0+0+0 32 0+0+0] [GFC] children: not-inline
        ImageBox <img> at [8,8] [0+0+0 200 0+0+0] [0+0+0 100 0+0+0] children: not-inline
          (SVG-as-image isolated context)
          Viewport <#document> at [0,0] [0+0+0 200 0+0+0] [0+0+0 100 0+0+0] [BFC] children: not-inline
            SVGSVGBox <svg> at [0,0] [0+0+0 200 0+0+0] [0+0+0 100 0+0+0] [SVG] children: not-inline
              SVGGeometryBox <rect> at [0,0] [0+0+0 200 0+0+0] [0+0+0 100 0+0+0] children: not-inline
      BlockContainer <(anonymous)> at [8,40] [0+0+0 784 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 800x48]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x32]
      Paintable (Box<DIV>) [8,8 784x32]
        ImagePaintable (ImageBox<IMG>) [8,8 200x100]
      PaintableWithLines (BlockContainer(anonymous)) [8,40 784x0]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x48] (z-index: auto)
