Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x20 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x4 children: not-inline
      TableWrapper <(anonymous)> at (8,8) content-size 784x4 [BFC] children: not-inline
        Box <table> at (8,8) content-size 784x4 table-box [TFC] children: not-inline
          Box <thead> at (10,10) content-size 0x0 table-header-group children: not-inline
            Box <tr> at (10,10) content-size 0x0 table-row children: not-inline
              BlockContainer <(anonymous)> at (0,590) content-size 800x10 positioned [BFC] children: inline
                TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x20]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x4]
      PaintableWithLines (TableWrapper(anonymous)) [8,8 784x4]
        PaintableBox (Box<TABLE>) [8,8 784x4]
          PaintableBox (Box<THEAD>) [10,10 0x0]
            PaintableBox (Box<TR>) [10,10 0x0]
              PaintableWithLines (BlockContainer(anonymous)) [0,590 800x10]
