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+0 276 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 260 0+0+8] children: not-inline
      BlockContainer <div.before> at [8,8] [0+0+0 784 0+0+0] [0+0+0 40 0+0+0] children: not-inline
      BlockContainer <div> at [8,83] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: not-inline
        Box <div.flex> at [8,83] flex-container(row) [0+0+0 784 0+0+0] [35+0+0 0 0+0+15] [FFC] children: not-inline
      BlockContainer <div.after> at [8,98] [0+0+0 784 0+0+0] [0+0+0 40 0+0+0] children: not-inline
      BlockContainer <(anonymous)> at [8,138] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)
      BlockContainer <div.before> at [8,138] [0+0+0 784 0+0+0] [0+0+0 40 0+0+0] children: not-inline
      BlockContainer <div> at [8,213] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: not-inline
        Box <div.grid> at [8,213] [0+0+0 784 0+0+0] [35+0+0 0 0+0+15] [GFC] children: not-inline
      BlockContainer <div.after> at [8,228] [0+0+0 784 0+0+0] [0+0+0 40 0+0+0] children: not-inline
      BlockContainer <(anonymous)> at [8,268] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x276]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x260]
      PaintableWithLines (BlockContainer<DIV>.before) [8,8 784x40]
      PaintableWithLines (BlockContainer<DIV>) [8,83 784x0]
        PaintableBox (Box<DIV>.flex) [8,83 784x0]
      PaintableWithLines (BlockContainer<DIV>.after) [8,98 784x40]
      PaintableWithLines (BlockContainer(anonymous)) [8,138 784x0]
      PaintableWithLines (BlockContainer<DIV>.before) [8,138 784x40]
      PaintableWithLines (BlockContainer<DIV>) [8,213 784x0]
        PaintableBox (Box<DIV>.grid) [8,213 784x0]
      PaintableWithLines (BlockContainer<DIV>.after) [8,228 784x40]
      PaintableWithLines (BlockContainer(anonymous)) [8,268 784x0]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x276] (z-index: auto)
