Viewport <#document> at [0,0] [0+0+0 800 0+0+0] [0+0+0 600 0+0+0] [BFC] children: not-inline
  BlockContainer <html> at [0,0] [0+0+0 800 0+0+0] [0+0+0 52 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 36 0+0+8] children: not-inline
      BlockContainer <div.first> at [8,8] [0+0+0 784 0+0+0] [0+0+0 18 0+0+0] children: inline
        frag 0 from TextNode start: 0, length: 5, rect: [8,8 42.140625x18] baseline: 13.796875
            "First"
        TextNode <#text> (not painted)
      BlockContainer <(anonymous)> at [8,26] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)
      BlockContainer <div.second> at [8,26] [0+0+0 784 0+0+0] [0+0+0 18 0+0+0] children: inline
        frag 0 from TextNode start: 0, length: 6, rect: [8,26 57.40625x18] baseline: 13.796875
            "Second"
        TextNode <#text> (not painted)
      BlockContainer <(anonymous)> at [8,44] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)
        TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x52]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x36]
      PaintableWithLines (BlockContainer<DIV>.first) [8,8 784x18]
        TextPaintable (TextNode<#text>)
      PaintableWithLines (BlockContainer(anonymous)) [8,26 784x0]
      PaintableWithLines (BlockContainer<DIV>.second) [8,26 784x18]
        TextPaintable (TextNode<#text>)
      PaintableWithLines (BlockContainer(anonymous)) [8,44 784x0]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x52] (z-index: auto)
