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 (8,13) content-size 784x16 children: not-inline
      BlockContainer <pre> at (9,14) content-size 782x14 children: inline
        InlineNode <span>
          frag 0 from TextNode start: 0, length: 1, rect: [9,14 6.5x14] baseline: 10.890625
              " "
          TextNode <#text>
        TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
    PaintableWithLines (BlockContainer<BODY>) [8,13 784x16]
      PaintableWithLines (BlockContainer<PRE>) [8,13 784x16]
        PaintableWithLines (InlineNode<SPAN>)
          TextPaintable (TextNode<#text>)
