Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x24 [BFC] children: not-inline
    BlockContainer <body> at (8,8) content-size 784x8 children: not-inline
      Box <div> at (8,8) content-size 784x8 flex-container(row) [FFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>
        ImageBox <img> at (8,8) content-size 8x8 flex-item children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x24]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x8]
      PaintableBox (Box<DIV>) [8,8 784x8]
        ImagePaintable (ImageBox<IMG>) [8,8 8x8]
