fis.config.set('settings.postprocessor.rjy-postcss', {
    addPlugins: function () {
        var plugins = [];

        //参考：https://github.com/postcss/autoprefixer
        var pl = require('autoprefixer');
        pl({ browsers: ['> 3% in CN'] });

        plugins.push(pl);

        return plugins;
    }
});

fis.match('*.{css,less}', {
    postprocessor: fis.plugin('rjy-postcss')
});