Keep Text Box Visible

Question

I am building out a product page and I want to have a small "shopping cart" on the page. I've set it up where when you click on the 8oz radio button and the Green Tea, Chamomile, or Oolong buttons and the "Add to Cart" button, a text box appears on the shopping cart on the bottom of the page.

However the problem I am having is that every time a new set is clicked (8oz and Chamomile after clicking 8oz and Green Tea), the original text box disappears. They are all separate text boxes but they keep hiding when a new selection is "added to cart". I would like them to just stack on top of one another.

Here is my Fiddle to see the code. Thanks in advance!