const px2rem = require('gulp-px2rem');

gulp.task('css', () => {
  return gulp.src('css/**/*.css')
    .pipe(px2rem())
    .pipe(gulp.dest('css'));
});

const px2rem = require('gulp-px2rem');

const px2remOptions = {
  replace: false
};

const postCssOptions = {
  map: true
};

gulp.task('css', () => {
  return gulp.src('css/**/*.css')
    .pipe(px2rem(px2remOptions, postCssOptions))
    .pipe(gulp.dest('css'));
});