Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (1,1) content-size 798x520 [BFC] children: not-inline
    BlockContainer <body> at (10,10) content-size 780x502 children: not-inline
      Box <div.container> at (11,11) content-size 500x500 [GFC] children: not-inline
        BlockContainer <div.item> at (244.828125,252.5) content-size 32.34375x17 [BFC] children: inline
          frag 0 from TextNode start: 0, length: 4, rect: [244.828125,252.5 32.34375x17] baseline: 13.296875
              "item"
          TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x522]
    PaintableWithLines (BlockContainer<BODY>) [9,9 782x504]
      PaintableBox (Box<DIV>.container) [10,10 502x502]
        PaintableWithLines (BlockContainer<DIV>.item) [243.828125,251.5 34.34375x19]
          TextPaintable (TextNode<#text>)
