Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x33 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 37.15625x17 children: not-inline
      BlockContainer <div> at (8,8) content-size 37.15625x17 children: inline
        frag 0 from TextNode start: 0, length: 3, rect: [8,8 27.15625x17] baseline: 13.296875
            "foo"
        frag 1 from ImageBox start: 0, length: 0, rect: [35.15625,11 10x10] baseline: 10
        TextNode <#text>
        ImageBox <img> at (35.15625,11) content-size 10x10 children: not-inline
        TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x33]
    PaintableWithLines (BlockContainer<BODY>) [8,8 37.15625x17]
      PaintableWithLines (BlockContainer<DIV>) [8,8 37.15625x17]
        TextPaintable (TextNode<#text>)
        ImagePaintable (ImageBox<IMG>) [35.15625,11 10x10]
