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 784x17 children: not-inline
      Box <div.foo> at (8,8) content-size 784x17 flex-container(row) [FFC] children: not-inline
        BlockContainer <(anonymous)> at (8,8) content-size 28.40625x17 flex-item [BFC] children: inline
          frag 0 from TextNode start: 0, length: 4, rect: [8,8 28.40625x17] baseline: 13.296875
              "well"
          TextNode <#text>
        BlockContainer <(anonymous)> at (46,8) content-size 36.84375x17 flex-item [BFC] children: inline
          frag 0 from TextNode start: 0, length: 5, rect: [46,8 36.84375x17] baseline: 13.296875
              "hello"
          TextNode <#text>
        BlockContainer <(anonymous)> at (92.4375,8) content-size 55.359375x17 flex-item [BFC] children: inline
          frag 0 from TextNode start: 0, length: 7, rect: [92.4375,8 55.359375x17] baseline: 13.296875
              "friends"
          TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x17]
      PaintableBox (Box<DIV>.foo) [8,8 784x17]
        PaintableWithLines (BlockContainer(anonymous)) [8,8 28.40625x17]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer(anonymous)) [46,8 36.84375x17]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer(anonymous)) [92.4375,8 55.359375x17]
          TextPaintable (TextNode<#text>)
