Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x116 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x100 children: not-inline
      BlockContainer <div#container-of-flex> at (8,8) content-size 100x100 children: not-inline
        Box <div#flex> at (-92,8) content-size 200x100 flex-container(row) [FFC] children: not-inline
          BlockContainer <(anonymous)> (not painted) [BFC] children: inline
            TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600] overflow: [-92,0 892x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x116] overflow: [-92,0 892x116]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x100] overflow: [-92,8 884x100]
      PaintableWithLines (BlockContainer<DIV>#container-of-flex) [8,8 100x100] overflow: [-92,8 200x100]
        PaintableBox (Box<DIV>#flex) [-92,8 200x100]
