[FEATURE] Add Autoprefixer

[dbruening]

Can you add Autoprefixer to add vendor prefixes to CSS rules using values from Can I Use. Frameworks like Bootstrap and Foundation also use Autoprefixer with their build tools.

Here are same links:

• https://github.com/postcss/autoprefixer
• https://github.com/vladkens/autoprefixer-php (Depend on Node.js - not recommended)
• https://github.com/adamdodev/autoprefixer-php-native (archived, maybe still helpfull)

[kaystrobach]

We experimented with a lot of pure php based auto prefixers, none of them was reliable.

We also thought about falling back to npm. If npm is an option this is doable.

Do you want to sponsor the implementation?

[tdeuling]

IMHO a npm based solution isn't ideal. We need a solution with is usable on standard hosting environments. This could also be a web service.

[kaystrobach]

maybe we can put the npm version into a seperate package?

[kaystrobach]

like dyncss_npm or similar, then we can ship a package.json, run npm install etc. and utilize that for a high quality compilation.

[kaystrobach]

maybe it also makes sense to use gitlab runners for that :) so we can use whatever you want for it ... 🎉