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 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.flex> at [8,8] flex-container(row) [0+0+0 784 0+0+0] [0+0+0 18 0+0+0] [FFC] children: not-inline
        Box <div.grid> at [8,8] flex-item [0+0+0 67.4375 0+0+0] [0+0+0 18 0+0+0] [GFC] children: not-inline
          BlockContainer <div.w-fit> at [8,8] [0+0+0 31.25 0+0+0] [0+0+0 18 0+0+0] [BFC] children: inline
            frag 0 from TextNode start: 0, length: 4, rect: [8,8 31.25x18] baseline: 13.796875
                "Col1"
            TextNode <#text> (not painted)
          BlockContainer <div.w-fit> at [41.71875,8] [0+0+0 33.71875 0+0+0] [0+0+0 18 0+0+0] [BFC] children: inline
            frag 0 from TextNode start: 0, length: 4, rect: [41.71875,8 33.71875x18] baseline: 13.796875
                "Col2"
            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>.flex) [8,8 784x18]
        PaintableBox (Box<DIV>.grid) [8,8 67.4375x18]
          PaintableWithLines (BlockContainer<DIV>.w-fit) [8,8 31.25x18]
            TextPaintable (TextNode<#text>)
          PaintableWithLines (BlockContainer<DIV>.w-fit) [41.71875,8 33.71875x18]
            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)
