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+0 116 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 100 0+0+8] children: not-inline
      BlockContainer <(anonymous)> at [8,8] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)
      BlockContainer <div#hidden> at [8,8] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: not-inline
      BlockContainer <(anonymous)> at [8,8] [0+0+0 784 0+0+0] [0+0+0 100 0+0+0] children: inline
        frag 0 from SVGSVGBox start: 0, length: 0, rect: [8,8 100x100] baseline: 100
        TextNode <#text> (not painted)
        SVGSVGBox <svg#visible> at [8,8] [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] [SVG] children: inline
          TextNode <#text> (not painted)
          SVGGeometryBox <rect#target> at [8,8] [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] children: not-inline
            SVGMaskBox <mask#mask> at [8,8] [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] children: inline
              TextNode <#text> (not painted)
              SVGGeometryBox <rect#mask-rect> at [8,8] [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] children: not-inline
              TextNode <#text> (not painted)
          TextNode <#text> (not painted)
        TextNode <#text> (not painted)
        TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x116]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x100]
      PaintableWithLines (BlockContainer(anonymous)) [8,8 784x0]
      PaintableWithLines (BlockContainer<DIV>#hidden) [8,8 784x0]
      PaintableWithLines (BlockContainer(anonymous)) [8,8 784x100]
        SVGSVGPaintable (SVGSVGBox<svg>#visible) [8,8 100x100]
          SVGPathPaintable (SVGGeometryBox<rect>#target) [8,8 100x100]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x116] (z-index: auto)
