Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (1,1) content-size 798x600 [BFC] children: not-inline
    BlockContainer <body> at (10,10) content-size 780x102 children: not-inline
      Box <div.grid-container> at (11,11) content-size 778x100 [GFC] children: not-inline
        BlockContainer <div.a> at (12,12) content-size 776x38 [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [12,12 6.34375x17] baseline: 13.296875
              "1"
          TextNode <#text>
        BlockContainer <div.b> at (12,52) content-size 776x58 [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [12,52 8.8125x17] baseline: 13.296875
              "2"
          TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600] overflow: [0,0 800x602]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x602]
    PaintableWithLines (BlockContainer<BODY>) [9,9 782x104]
      PaintableBox (Box<DIV>.grid-container) [10,10 780x102]
        PaintableWithLines (BlockContainer<DIV>.a) [11,11 778x40]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.b) [11,51 778x60]
          TextPaintable (TextNode<#text>)
