I’d like my Add to Cart to fill the container at max width and no code I’ve tried worked so I’m not sure how to change this.
Never mind, after a lot more searching, I finally found a code that worked.
Container of add to cart button set max-widht is 44rem. Please go to Online store > Themes > Edit code > open section-main-product.css, and find this line of code.
.product-form__buttons {
max-width: 44rem;
}
Change to this
.product-form__buttons {
max-width: 100%;
}