Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x35 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x19 children: inline
      frag 0 from BlockContainer start: 0, length: 0, rect: [9,9 100.203125x17] baseline: 14.296875
      BlockContainer <span> at (9,9) content-size 100.203125x17 inline-block [BFC] children: inline
        frag 0 from TextNode start: 0, length: 13, rect: [9,9 100.203125x17] baseline: 13.296875
            "hello friends"
        TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x35]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x19]
      PaintableWithLines (BlockContainer<SPAN>) [8,8 102.203125x19]
        TextPaintable (TextNode<#text>)
