layer at (0,0) size 800x600
  RenderView {#document} at (0,0) size 800x600
layer at (0,0) size 800x89
  RenderBlock {foo} at (0,0) size 800x89
    RenderImage {img} at (0,0) size 256x64
    RenderImage {img} at (0,64) size 100x25