Annoying issue and I've tried several javascript/jquery/plug-ins and nothing has worked. Went through numerous trials with this SO link: Prevent scrolling of parent element?
Here's an example:
https://livedemo00.template-help.com/woocommerce_53307/checkout/
note: you have to add a demo product to the cart to get to this page..
If you notice on the Country
drop-down select option box, if you try to use the scroll wheel within it, it just resorts to scrolling the parent window. Scrolling isn't working at all for me within the drop down box.
I wish I could provide some sample code, but nothing has even remotely worked.
How do I enable scrolling in the Select2 Drop Down box?