Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x116 children: not-inline
    BlockContainer <body> at (8,8) content-size 400x100 children: not-inline
      ImageBox <img> at (158,8) content-size 100x100 children: not-inline
