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: not-inline
      BlockContainer <div#container> at (8,8) content-size 784x17 children: inline
        InlineNode <span>
          frag 0 from TextNode start: 0, length: 5, rect: [8,8 43.421875x17] baseline: 13.296875
              "Pass!"
          TextNode <#text>
      BlockContainer <(anonymous)> at (8,25) content-size 784x0 children: inline
        TextNode <#text>
        TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x17]
      PaintableWithLines (BlockContainer<DIV>#container) [8,8 784x17]
        PaintableWithLines (InlineNode<SPAN>)
          TextPaintable (TextNode<#text>)
      PaintableWithLines (BlockContainer(anonymous)) [8,25 784x0]
