Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x17 children: not-inline
      BlockContainer <div.wrapper> at (8,8) content-size 200x17 children: not-inline
        BlockContainer <div.box> at (48,8) content-size 100x17 children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [48,8 6.34375x17] baseline: 13.296875
              "1"
          TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x17]
      PaintableWithLines (BlockContainer<DIV>.wrapper) [8,8 200x17]
        PaintableWithLines (BlockContainer<DIV>.box) [8,8 140x17]
          TextPaintable (TextNode<#text>)
