Reply To: Remove Additional Information In WooCommerce

Hello,

Please remove the earlier CSS in this regard that you have already applied and try the following Custom CSS on your Site in this regard:

#tab-title-additional_information {
    display: none !important;
}

Location to paste Custom CSS, go to Dashboard >> Theme Settings >> Custom CSS >> Global CSS section >> paste the CSS.

If somehow the issue still persists, then 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.