Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x414 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x6 children: not-inline
      BlockContainer <div.a> at (8,8) content-size 100x6 children: inline
        frag 0 from TextNode start: 1, length: 1, rect: [8,8 4.328125x6] baseline: 4.5
            "H"
        TextNode <#text>
        BlockContainer <div.b.l> at (8,14) content-size 100x100 floating [BFC] children: not-inline
        TextNode <#text>
        BlockContainer <div.c.l> at (8,114) content-size 30x300 floating [BFC] children: not-inline
        TextNode <#text>
        BlockContainer <div.c.r> at (78,114) content-size 30x300 floating [BFC] children: not-inline
        TextNode <#text>
      BlockContainer <(anonymous)> at (8,14) content-size 784x0 children: inline
        TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x414]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x6]
      PaintableWithLines (BlockContainer<DIV>.a) [8,8 100x6]
        TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.b.l) [8,14 100x100]
        PaintableWithLines (BlockContainer<DIV>.c.l) [8,114 30x300]
        PaintableWithLines (BlockContainer<DIV>.c.r) [78,114 30x300]
      PaintableWithLines (BlockContainer(anonymous)) [8,14 784x0]
