gistfile1.txt

module.exports = {
    plugins: [
        require('postcss-import')(),
        require('postcss-nested')(),

        require('postcss-simple-vars'),
        require('postcss-cssnext')({
            warnForDuplicates: false
        }),
        require('postcss-calc'),
        require('postcss-functions')({
            functions: {
                darken: function (value, frac) {
                  var hsla = color(value).toHslaArray();
                  hsla[2] = Math.round(Math.max(Math.min(100, hsla[2] - hsla[2] * frac), 0));
                  return color().fromHsla(hsla).toHexString();
                }
            }
        }),
        require('lost')
    ]
}