I'm trying to understand this better. To kick things off, I thought this would make an interesting read, even if it is a bit dated.
<img src="http://lookinside-images.amazon.com/Qffs+v35lepK7LPTQpNPCLXbMsQv/RxPHFChVoUpkM3T+3lp51C89fS5iLHGLqXv8GZcP4QDlSb6zcp8/exLaHYI223cjgwuRUxjj0Gw3sGB2aaguTRhD6k+rn8eQiKySuA3MZTYCXXggmu2JAfJ9A==" img>
<img src="http://lookinside-images.amazon.com/Qffs+v35lepK7LPTQpNPCLXbMsQv/RxPHFChVoUpkM3T+3lp51C89fS5iLHGLqXv8GZcP4QDlSb6zcp8/exLaHYI223cjgwuRUxjj0Gw3sGB2aaguTRhD6k+rn8eQiKySuA3MZTYCXXggmu2JAfJ9A==" img>