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 32 0+0+0] [BFC] children: not-inline
    Box <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 16 0+0+8] [GFC] children: not-inline
      Box <div.main> at [8,8] flex-container(row) [0+0+0 100 0+0+0] [0+0+0 16 0+0+0] [FFC] children: not-inline
        BlockContainer <div.player> at [8,8] flex-item [0+0+0 100 0+0+0] [0+0+0 16 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 3, rect: [8,8 26.953125x16] baseline: 12.796875
              "whf"
          TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x32]
    Paintable (Box<BODY>) [8,8 784x16]
      Paintable (Box<DIV>.main) [8,8 100x16]
        PaintableWithLines (BlockContainer<DIV>.player) [8,8 100x16]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x32] (z-index: auto)
