Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x64 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x48 children: not-inline
      SVGSVGBox <svg> at (8,8) content-size 48x48 [SVG] children: not-inline
        SVGForeignObjectBox <foreignObject> at (8,8) content-size 30x30 [BFC] children: not-inline
          BlockContainer <div> at (13,13) content-size 40x40 children: not-inline
      BlockContainer <(anonymous)> at (8,56) content-size 784x0 children: inline
        TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x64]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x48]
      SVGSVGPaintable (SVGSVGBox<svg>) [8,8 48x48]
        SVGForeignObjectPaintable (SVGForeignObjectBox<foreignObject>) [8,8 30x30] overflow: [8,8 50x50]
          PaintableWithLines (BlockContainer<DIV>) [8,8 50x50]
      PaintableWithLines (BlockContainer(anonymous)) [8,56 784x0]

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x64] [children: 1] (z-index: auto)
  SC for SVGForeignObjectBox<foreignObject> [8,8 30x30] [children: 0] (z-index: auto)
