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+0 516 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 500 0+0+8] children: not-inline
      Box <div.grid> at [8,8] [0+0+0 500 0+0+284] [0+0+0 500 0+0+0] [GFC] children: not-inline
        BlockContainer <div#a> at [8,8] [0+0+0 100 0+0+0] [0+0+0 300 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [8,8 6.34375x18] baseline: 13.796875
              "1"
          TextNode <#text> (not painted)
        BlockContainer <div#b> at [108,8] [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [108,8 8.8125x18] baseline: 13.796875
              "2"
          TextNode <#text> (not painted)
        BlockContainer <div#c> at [108,108] [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [108,108 9.09375x18] baseline: 13.796875
              "3"
          TextNode <#text> (not painted)
        BlockContainer <div#d> at [108,208] [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [108,208 7.75x18] baseline: 13.796875
              "4"
          TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x516]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x500]
      PaintableBox (Box<DIV>.grid) [8,8 500x500]
        PaintableWithLines (BlockContainer<DIV>#a) [8,8 100x300]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>#b) [108,8 100x100]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>#c) [108,108 100x100]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>#d) [108,208 100x100]
          TextPaintable (TextNode<#text>)

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x516] [children: 0] (z-index: auto)
