The backbone of the internet of the modern era, IMO. I've worked with Tailwind CSS even before the AI era and it was such a breeze to work with. Of course, knowing CSS made it even more better because you really get to see how 10-20 lines of complex selectors can become a simple `group` or `peer` class name.
It was the most obvious choice for a headless chrome solution that's being actively maintained. It works seamlessly with Reactive Resume as the primary PDF printing service, and because it's just chrome under-the-hood, it allows me to make very specific configuration changes that are suitable for my project's workflow.