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 34 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 18 0+0+8] children: not-inline
      Box <div.grid-container> at [8,8] [0+0+0 784 0+0+0] [0+0+0 18 0+0+0] [GFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [8,8] [0+0+0 261.328125 0+0+0] [0+0+0 18 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 <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.grid-item> at [269.328125,8] [0+0+0 261.328125 0+0+0] [0+0+0 18 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [269.328125,8 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 [530.65625,8] [0+0+0 261.328125 0+0+0] [0+0+0 18 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [530.65625,8 9.09375x18] baseline: 13.796875
              "3"
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x34]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x18]
      PaintableBox (Box<DIV>.grid-container) [8,8 784x18]
        PaintableWithLines (BlockContainer<DIV>.grid-item) [8,8 261.328125x18]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.grid-item) [269.328125,8 261.328125x18]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.grid-item) [530.65625,8 261.328125x18]
          TextPaintable (TextNode<#text>)

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x34] [children: 0] (z-index: auto)
