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 784x17 children: not-inline
      Box <div.container> at (8,8) content-size 784x17 [GFC] children: not-inline
        BlockContainer <div.item> at (8,8) content-size 480x17 [BFC] children: not-inline
          BlockContainer <div.box> at (8,8) content-size 480x17 children: inline
            frag 0 from TextNode start: 0, length: 1, rect: [8,8 6.34375x17] baseline: 13.296875
                "1"
            TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x33]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x17]
      PaintableBox (Box<DIV>.container) [8,8 784x17]
        PaintableWithLines (BlockContainer<DIV>.item) [8,8 480x17]
          PaintableWithLines (BlockContainer<DIV>.box) [8,8 480x17]
            TextPaintable (TextNode<#text>)
