single product

Hello,

01. Navigate to Theme Settings > Styles and Colors > Buttons > Advanced Buttons Styles.
Please Follow this guide and change the button styles:
https://xtemos.com/docs-topic/advanced-button-styles/

02. The default WooCommerce additional information tab also lets you display custom product attributes. If you want to disable it, share the product page url so i will check and give you a custom css code.

Best Regards.

Hello,

Add this code to the Theme Settings > Custom CSS > Global:

li.additional_information_tab {
  display: none;
}

Best Regards.

Hello,

Sorry to hear about the inconvenience. Kindly, please share your Site WP-ADMIN Login details in the Private Content field so that we can check this concern on your Site and help you out accordingly.

Best Regards.