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 [1,1] [0+1+0 798 0+1+0] [0+1+0 38 0+1+0] [BFC] children: not-inline
    BlockContainer <body> at [10,10] [8+1+0 780 0+1+8] [8+1+0 20 0+1+8] children: not-inline
      Box <div.container> at [11,11] flex-container(row) [0+1+0 800 0+1+-22] [0+1+0 18 0+1+0] [FFC] children: not-inline
        BlockContainer <(anonymous)> at [392.203125,11] flex-item [0+0+0 37.578125 0+0+0] [0+0+0 18 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 4, rect: [392.203125,11 37.578125x18] baseline: 13.796875
              "Text"
          TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600] overflow: [0,0 812x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x40] overflow: [1,1 811x38]
    PaintableWithLines (BlockContainer<BODY>) [9,9 782x22] overflow: [10,10 802x20]
      PaintableBox (Box<DIV>.container) [10,10 802x20]
        PaintableWithLines (BlockContainer(anonymous)) [392.203125,11 37.578125x18]
          TextPaintable (TextNode<#text>)

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [1,1 798x38] [children: 0] (z-index: auto)
