Multiple selectors not supported in :is() pseudo

[PedroGuedesDT]

I'm exploring this library to develop a POC for a possible solution.
Yet, in my tests, when i try to parse a valid CSS file that have a selector like this:

:is(p, a)

It complains that it don't expects the comma. But when i check some documentation, it is expected to support multiple values.

Check this:

Mozilla documentation

Am i doing something wrong, or is something that is not previewed to happen here?

[phax]

Hi @PedroGuedesDT, can you please post the example snippet here. What version are you using?