Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x66 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x50 children: not-inline
      Box <div#item> at (8,8) content-size 100x50 [GFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        ImageBox <img> at (8,8) content-size 50x50 children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x66]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x50]
      PaintableBox (Box<DIV>#item) [8,8 100x50]
        ImagePaintable (ImageBox<IMG>) [8,8 50x50]
