Provide a reference page of Tailwind syntax

[ematipico]

Hi Tailwind team.

I am one of the maintainers of Biome, and I would like to make a request. We recently added opt-in support for Tailwind v4 in the Biome parser; however, we've had really hard times implementing it due to the lack of documentation of Tailwind syntax. Or the documentation exists, but it's fragmented.

For example, recently one of our users reported an issue, and they struggled to find official documentation for that bug.

My request is: would it be possible to have a reference page with ALL the Tailwind CSS syntax? That would really help us.

[philipp-spiess]

Hey! Thanks for the request. We've flagged this internally as well and agree that it makes sense to put something together. Current thinking is that maybe this could live as some kind of reference.css file in the repo – would something like that be useful? Basically we'd document our full CSS API in one file.

[dyc3]

That would definitely be useful!

[dyc3]

Obviously I would prefer a spec that more concretely defines where the addition syntax goes, and what is valid/invalid. But if a reference.css is easier for yall, that would still make it way easier for me. :)

(context: I'm the guy working on this feature for Biome)