Removing quantity on SOME product pages

Site URL: http://papertreestudio.net

Hi All,

I am hoping someone can help with a code to remove the quantity button on some of my product pages. I know how to remove it site-wide but I don't want to do that. I have some products that are perfect for the standard quantity button but I also offer wedding invitations and have them grouped into 25's. Right now in order to do that I would have to have double quantity buttons which is likely to be confusing to my customers. Before I launch the invitations I want to fix the issue. Thanks in advance!!!!

Edit Product Additional Info > Add Code Block > Paste this code

<style>
  paste your css site wide code here
</style>