Divi Supreme Pro is a plugin designed to enhance the features and functionality of the Divi theme, which is a popular WordPress theme developed by Elegant Themes. Here are some key points about Divi Supreme Pro:

1. Custom Divi Creative Modules: This plugin adds 41 custom Divi creative modules to your Divi theme. These modules expand the capabilities of the Divi Builder, allowing you to create more diverse and feature-rich content on your website.
2. Divi Extensions: Divi Supreme Pro includes five Divi extensions to further improve your web development experience. These extensions provide additional functionality to Divi, helping you create amazing websites more efficiently.
3. License Key: GPLTop.com provides functional products without the need for a license key. License keys are typically used for automatic updates and premium support from the original developer. While they cannot provide you with a license key, they offer manual updates and minor assistance to ensure you can use the product effectively.
4. Refund Policy: If the plugin or theme does not function correctly and they are unable to assist you in resolving the issue, they offer a money-back guarantee. However, if the product is working as intended, a refund will not be provided.
5. "style.css missing" Error: This is a common issue for users when trying to upload a theme to WordPress. The error occurs because the theme package from sources like ThemeForest includes additional files such as documentation and licenses. To resolve this issue, unzip the theme package you downloaded and upload the "themename.zip" file, which is the actual theme file.

Please note that using products without proper licensing may have legal and ethical implications. Make sure you understand the terms and conditions of product usage and licensing.