Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x172 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x156 children: not-inline
      BlockContainer <(anonymous)> at (8,8) content-size 784x0 children: inline
        TextNode <#text>
      Box <div.wrapper> at (8,8) content-size 784x156 [GFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        BlockContainer <div.box.a> at (28,38) content-size 60x28 [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [28,38 21.40625x28] baseline: 21.1875
              "A"
          TextNode <#text>
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        BlockContainer <div.box.b> at (28,116) content-size 60x28 [BFC] children: inline
          frag 0 from TextNode start: 0, length: 1, rect: [28,116 14.015625x28] baseline: 21.1875
              "B"
          TextNode <#text>
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x172]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x156]
      PaintableWithLines (BlockContainer(anonymous)) [8,8 784x0]
      PaintableBox (Box<DIV>.wrapper) [8,8 784x156]
        PaintableWithLines (BlockContainer<DIV>.box.a) [8,18 100x68]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (BlockContainer<DIV>.box.b) [8,96 100x68]
          TextPaintable (TextNode<#text>)
