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+0 216 0+0+0] [BFC] children: not-inline
    Box <body> at [8,8] flex-container(row) [8+0+0 300 0+0+492] [8+0+0 200 0+0+8] [FFC] children: not-inline
      BlockContainer <main> at [8,8] flex-item [0+0+0 27.640625 0+0+0] [0+0+0 200 0+0+0] [BFC] children: not-inline
        BlockContainer <article> at [8,8] [0+0+0 27.640625 0+0+0] [0+0+0 27.640625 0+0+0] children: inline
          frag 0 from TextNode start: 0, length: 3, rect: [8,8 27.15625x18] baseline: 13.796875
              "foo"
          TextNode <#text> (not painted)
        BlockContainer <article> at [8,35.640625] [0+0+0 27.640625 0+0+0] [0+0+0 27.640625 0+0+0] children: inline
          frag 0 from TextNode start: 0, length: 3, rect: [8,35.640625 27.640625x18] baseline: 13.796875
              "bar"
          TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x216]
    PaintableBox (Box<BODY>) [8,8 300x200]
      PaintableWithLines (BlockContainer<MAIN>) [8,8 27.640625x200]
        PaintableWithLines (BlockContainer<ARTICLE>) [8,8 27.640625x27.640625]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<ARTICLE>) [8,35.640625 27.640625x27.640625]
          TextPaintable (TextNode<#text>)

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x216] [children: 0] (z-index: auto)
