Autoprefixer-transform [](https://travis-ci.org/hocss/autoprefixer-transform)
Autoprefixer transform stream
npm i -D autoprefixer-transform
import fs from 'fs'
import autoprefixer from 'autoprefixer-transform'
fs.createReadStream( 'styles.css' )
.pipe( autoprefixer({ browsers: [ 'last 2 versions' ] } ) )
.pipe( fs.createWriteStream( 'main.css' ) )