Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x36 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x20 children: not-inline
      BlockContainer <div.fixed_width> at (9,9) content-size 50x18 children: inline
        TextNode <#text>
        InlineNode <span.nowrap>
          frag 0 from TextNode start: 0, length: 3, rect: [9,9 33.921875x18] baseline: 13.796875
              "ABC"
          TextNode <#text>
        InlineNode <span>
          frag 0 from TextNode start: 0, length: 1, rect: [42.921875,9 11.5625x18] baseline: 13.796875
              "X"
          TextNode <#text>
        InlineNode <span.nowrap>
          frag 0 from TextNode start: 0, length: 3, rect: [54.484375,9 33.921875x18] baseline: 13.796875
              "ABC"
          TextNode <#text>
        TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x36]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x20]
      PaintableWithLines (BlockContainer<DIV>.fixed_width) [8,8 52x20]
        PaintableWithLines (InlineNode<SPAN>.nowrap) [9,9 33.921875x18]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (InlineNode<SPAN>) [42.921875,9 11.5625x18]
          TextPaintable (TextNode<#text>)
        PaintableWithLines (InlineNode<SPAN>.nowrap) [54.484375,9 33.921875x18]
          TextPaintable (TextNode<#text>)

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x36] [children: 0] (z-index: auto)
