Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x114 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x98 children: not-inline
      Box <div.container> at (18,18) content-size 764x78 [GFC] children: not-inline
        BlockContainer <div.item> at (48,48) content-size 704x18 [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [48,48 6.34375x18] baseline: 13.796875
              "1"
          TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x114]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x98]
      PaintableBox (Box<DIV>.container) [8,8 784x98]
        PaintableWithLines (BlockContainer<DIV>.item) [18,18 764x78]
          TextPaintable (TextNode<#text>)
