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 (8,8) content-size 784x17 children: inline
      InlineNode <pre>
        frag 0 from TextNode start: 0, length: 3, rect: [9,8 19.875x17] baseline: 13.296875
            " | "
        TextNode <#text>
      TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x17]
      InlinePaintable (InlineNode<PRE>)
        TextPaintable (TextNode<#text>)
