I have created a unique CSS theme for a popular PHP web script, consisting of around 700 lines of code. Recently, I've been suspecting that other individuals might be unlawfully using my theme without permission. Therefore, I am searching for a platform where I can input my CSS code and it will scan the internet for websites using the same CSS.
While tools like CopyScape.com are able to detect matching content on websites, there isn't a similar tool specifically designed for CSS comparison. If anyone knows of such a resource or can offer assistance in this matter, I would greatly appreciate it. Thank you!