How can I hide a button when a certain option is selected in ReCharge?

I just installed ReCharge for subscriptions and am trying to figure out how to hide my QTY button if the Subscribe and Save Option is chosen.

I tried the code below in my styles.css.liquid file but it did not work. Am I in the right direction or completely lost?

{%- if input id="product_6656872415397_group_176954_subsave" -%}
   .product-qty {
     display: none !important;
   }
   {%- endif -%}

Hi @robkaufman

I checked and the code you added was incorrect. Can you send me the product link? I will check and provide the code for you.

Thank you.