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+0 200 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 <div#item2> at [8,8] flex-item [0+0+0 100 0+0+0] [0+0+0 50 0+0+0] [BFC] children: not-inline
        BlockContainer <div#item2-inner> at [8,8] [0+0+0 50 0+0+50] [0+0+0 50 0+0+0] children: inline
          TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x200] overflow: [0,0 800x208]
    PaintableBox (Box<BODY>) [8,8 300x200]
      PaintableWithLines (BlockContainer<DIV>#item2) [8,8 100x50]
        PaintableWithLines (BlockContainer<DIV>#item2-inner) [8,8 50x50]

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x200] [children: 0] (z-index: auto)
