Believe me, I try all the time. But HTML and CSS are not made for the modern web.
Styling radio buttons, working date inputs, forms that POST automatically, typeahead and server-side validation (eg username already taken.)
You spend all your time reinventing the wheel and then it's buggy and looks like a dog. To say nothing of the inevitable poly fills and Cross-Browser issues.
How does tailwind solve this vs. vanilla CSS?
I have not run into cross-browser differences in a long time. That is differences, that actually mattered and for which I would have had to build any workaround. I have built several websites recently, using vanilla HTML and CSS and solved everything using server-side rendering.
What problems specifically do you see with server-side rendering?