Hello, @morad,
1. I apologize for not understanding your request. Could you please clarify what you mean by enlarging the “Add to Cart” and “Buy Now” buttons? Do you mean to make them full-width on the mobile version?
2. In order to increase the height of the “Buy Now” button on mobile, please copy and paste the following CSS code to Xstore >> Theme Options >> Theme Custom CSS >> Global CSS and then check back to your site after clearing the browser cache:
@media(max-width: 767px){
.et-single-buy-now.single_add_to_cart_button.button {
padding-top: 20px !important;
padding-bottom: 20px !important;
}
}
Note: You can adjust the values in the code as needed.
Best Regards,
8Theme’s Team