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+0 366 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 350 0+0+8] children: not-inline
      Box <div.grid-container> at [8,8] [0+0+0 784 0+0+0] [0+0+0 350 0+0+0] [GFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [68,68] [0+10+50 17.046875 50+10+0] [0+10+50 30 50+10+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [70.578125,68 11.890625x30] baseline: 24
              "1"
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [255.046875,68] [0+10+50 16.53125 50+10+0] [0+10+50 30 50+10+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [255.046875,68 16.53125x30] baseline: 24
              "2"
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [68,268] [0+10+50 17.046875 50+10+0] [0+10+50 30 50+10+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [68,268 17.046875x30] baseline: 24
              "3"
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [255.046875,268] [0+10+50 16.53125 50+10+0] [0+10+50 30 50+10+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [256.046875,268 14.53125x30] baseline: 24
              "4"
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
      BlockContainer <(anonymous)> at [8,358] [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 800x366]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x350]
      Paintable (Box<DIV>.grid-container) [8,8 784x350]
        PaintableWithLines (BlockContainer<DIV>.grid-item) [8,8 137.046875x150]
        PaintableWithLines (BlockContainer<DIV>.grid-item) [195.046875,8 136.53125x150]
        PaintableWithLines (BlockContainer<DIV>.grid-item) [8,208 137.046875x150]
        PaintableWithLines (BlockContainer<DIV>.grid-item) [195.046875,208 136.53125x150]
      PaintableWithLines (BlockContainer(anonymous)) [8,358 784x0]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x366] (z-index: auto)
