Meteor CSS Minifier with PostCSS processing.
This package allows you to use PostCSS plugins with .css files. You can add your custom plugins by adding Npm packages using
package.json. You can also use your favourite preprocessor side by side with this package. It allows you to enable many PostCSS plugins, for example Autoprefixer for all preprocessors you use. (Of course you can use it whithout any preprocessor too).