Nah, Tailwind is way more important for LLMs than vanilla CSS.

Models work in contexts. If my context is "my entire app's styling", then it's going to be really difficult to write styles in line unless it's already pretty perfect.

Tailwind doesn't have that problem. It's local. I can define a single theme and KNOW FOR A FACT how something will look before it even touches my code. That's the beauty of utility-like libraries.

I stopped working in marketing and advertising (which DID need custom styles), and went to strictly app dev where my needs completely changed.