Viewport <#document> at [0,0] [0+0+0 800 0+0+0] [0+0+0 600 0+0+0] children: not-inline
  BlockContainer <html> at [0,0] [0+0+0 800 0+0+0] [0+0+0 136 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 120 0+0+8] children: not-inline
      Box <div.grid> at [13,13] [0+5+0 50 0+5+724] [0+5+0 50 0+5+0] [GFC] children: not-inline
        BlockContainer <div#a> at [13,13] [0+0+0 0 0+0+0] [0+0+0 25 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 10, rect: [13,13 115.625x18] baseline: 13.796875
              "XXXXXXXXXX"
          TextNode <#text> (not painted)
        BlockContainer <div#b> at [13,38] [0+0+0 0 0+0+0] [0+0+0 25 0+0+0] [BFC] children: not-inline
      BlockContainer <(anonymous)> at [8,68] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)
      Box <div.grid> at [13,73] [0+5+0 50 0+5+724] [0+5+0 50 0+5+0] [GFC] children: not-inline
        BlockContainer <div#a> at [18,73] [5+0+0 0 0+0+5] [0+0+0 25 0+0+0] [BFC] children: not-inline
        BlockContainer <div#b> at [13,98] [0+0+0 10 0+0+0] [0+0+0 25 0+0+0] [BFC] children: not-inline
      BlockContainer <(anonymous)> at [8,128] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x136]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x120]
      PaintableBox (Box<DIV>.grid) [8,8 60x60]
        PaintableWithLines (BlockContainer<DIV>#a) [13,13 0x25] overflow: [13,13 115.625x18]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>#b) [13,38 0x25]
      PaintableWithLines (BlockContainer(anonymous)) [8,68 784x0]
      PaintableBox (Box<DIV>.grid) [8,68 60x60]
        PaintableWithLines (BlockContainer<DIV>#a) [18,73 0x25]
        PaintableWithLines (BlockContainer<DIV>#b) [13,98 10x25]
      PaintableWithLines (BlockContainer(anonymous)) [8,128 784x0]

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x136] [children: 0] (z-index: auto)
