Bug#989704: ITP: node-postcss-preset-env -- Convert modern CSS into something browsers understand

[Pirate Praveen <praveen@onenetbeyond.org>]

Package: wnpp
Severity: wishlist
Owner: Pirate Praveen <praveen@debian.org>

Need this for node-katex update to 0.13 but it does not support postcss 
8 yet.

https://github.com/csstools/postcss-preset-env/issues/191

Probably will use 
https://www.npmjs.com/package/postcss-preset-evergreen till it gains 
postcss 8 support.