Implement `CSSStyleSheet` API

[lucacasonato]

It would be awesome to be able to use CSSStyleSheet server side to easily manipulate and generate style sheets using the same API as the browser.

https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleSheet

https://andreubotella.com/csswg-auto-build/cssom-1/

[surma]

A Built-In CSS Parser/Generator would be 10/10

[zhmushan]

https://github.com/servo/rust-cssparser Could we use this crate?

[cryptographix]

Maybe could use prior work by @littledivy https://github.com/deno-front-end/css-parser

There's a branch with port to servo WIP

[andrewbrey]

To toss another related project into your field of view, there's https://github.com/parcel-bundler/parcel-css as well :+1:

[devongovett]

Parcel CSS uses rust-cssparser under the hood, and provides parsing/serializing support for all rules/properties on top. I've been meaning to implement CSSOM. All the pieces are there, just need to put them together. Would be cool to collaborate with Deno on that!

[timreichen]

Any updates on this?