The CSS that make WooCommerce (previously My Account) page better on Divi theme.
Copy this CSS (custom.css) code to Custom CSS in Divi > Theme Option or copy this CSS (custom.css) to your child theme CSS file.
If you didn't want to use the Divi button and form assets inside WooCommerce, use this CSS file (custom-materialbtn.css) which is using button like Material.
If you need the function, copy (functions.php) to functions.php.