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 [1,1] [0+1+0 798 0+1+0] [0+1+0 30 0+1+0] [BFC] children: not-inline
    BlockContainer <body> at [10,10] [8+1+0 780 0+1+8] [8+1+0 12 0+1+8] children: not-inline
      BlockContainer <(anonymous)> at [10,10] [0+0+0 780 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)
      Box <div.flex-container> at [11,11] flex-container(row) [0+1+0 600 0+1+178] [0+1+0 10 0+1+0] [FFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.flex-item> at [12,72] flex-item [0+1+0 27.15625 0+1+0] [0+1+60 18 120+1+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 3, rect: [12,72 27.15625x18] baseline: 13.796875
              "foo"
          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 800x32] overflow: [1,1 798x210]
    PaintableWithLines (BlockContainer<BODY>) [9,9 782x14] overflow: [10,10 780x201]
      PaintableWithLines (BlockContainer(anonymous)) [10,10 780x0]
      PaintableBox (Box<DIV>.flex-container) [10,10 602x12] overflow: [11,11 600x200]
        PaintableWithLines (BlockContainer<DIV>.flex-item) [11,11 29.15625x200]
          TextPaintable (TextNode<#text>)

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [1,1 798x30] [children: 0] (z-index: auto)
