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+0 286 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 270 0+0+8] children: not-inline
      Box <div.grid-container> at [58,58] positioned [0+0+50 170 50+0+514] [0+0+50 170 50+0+0] [GFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [58,58] [0+0+0 50 0+0+0] [0+0+0 50 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [58,58 6.34375x18] baseline: 13.796875
              "1"
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [128,58] [0+0+0 100 0+0+0] [0+0+0 50 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [128,58 8.8125x18] baseline: 13.796875
              "2"
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [58,128] [0+0+0 50 0+0+0] [0+0+0 100 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [58,128 9.09375x18] baseline: 13.796875
              "3"
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [128,128] [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: [128,128 7.75x18] baseline: 13.796875
              "4"
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.abspos-box> at [8,8] positioned [0+0+0 270 0+0+0] [0+0+0 270 0+0+0] [BFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
      BlockContainer <(anonymous)> at [8,278] [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 800x286]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x270]
      PaintableBox (Box<DIV>.grid-container) [8,8 270x270]
        PaintableWithLines (BlockContainer<DIV>.grid-item) [58,58 50x50]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.grid-item) [128,58 100x50]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.grid-item) [58,128 50x100]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.grid-item) [128,128 100x100]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.abspos-box) [8,8 270x270]
      PaintableWithLines (BlockContainer(anonymous)) [8,278 784x0]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x286] (z-index: auto)
