Hi, I'd like to enlarge and stack my variant buttons on top of each other to take up the entire section EXACTLY the same as the reference image. Thanks!
My store is www.revailco.com
Hope you are doing well.
You can change the design as you have mentioned by doing custom CSS code to your theme file, and if you are not good at coding then I recommend you to hire a theme developer for making this happen.
Binal Savani | iDentixweb