Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x206 children: not-inline
      Box <div.container> at (9,9) content-size 250x204 flex-container(row) [FFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        BlockContainer <div.box> at (10,10) content-size 100x100 flex-item [BFC] children: inline
          line 0 width: 6.34375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
            frag 0 from TextNode start: 0, length: 1, rect: [10,10 6.34375x17.46875]
              "1"
          TextNode <#text>
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        BlockContainer <div.box> at (112,10) content-size 100x100 flex-item [BFC] children: inline
          line 0 width: 8.8125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
            frag 0 from TextNode start: 0, length: 1, rect: [112,10 8.8125x17.46875]
              "2"
          TextNode <#text>
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        BlockContainer <div.box> at (10,112) content-size 100x100 flex-item [BFC] children: inline
          line 0 width: 9.09375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
            frag 0 from TextNode start: 0, length: 1, rect: [10,112 9.09375x17.46875]
              "3"
          TextNode <#text>
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
      BlockContainer <(anonymous)> at (8,214) content-size 784x0 children: inline
        TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x206]
      PaintableBox (Box<DIV>.container) [8,8 252x206]
        PaintableWithLines (BlockContainer<DIV>.box) [9,9 102x102]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.box) [111,9 102x102]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.box) [9,111 102x102]
          TextPaintable (TextNode<#text>)
      PaintableWithLines (BlockContainer(anonymous)) [8,214 784x0]
