How to remove the black border on variant hover?

How can I remove this black thick border line around variants when hover?

Hello There,

Please share your page store URL and password.
So that I will check and let you know the exact solution here.

Hey @jaesielee ,
Welcome to the Shopify community!
Please share your store URL.
So that I will check and let you know the exact solution here.
Thank you.
Raman!