title: react-hot-toast custom positioning overlay
body: <p>I am using react-hot-toast npm package for my notifications and i have created custom card with the help of toast.custom() function.
  I need to overlap notifications on top of each card.but there is no options given to do that.With new version (2.0) they have given the option to customize the position with container styles for  component but not for the toast.custom() function.If someone can help me much appreciated.
  Thanks in advance.</p>