text: 'use strict';
  
  var gulp = require('gulp');
  
  gulp.task('css', function () {
      var sass = require('gulp-sass');
      var postcss = require('gulp-postcss');
      var autoprefixer = require('autoprefixer');
  
      return gulp.src('./asset/sass/*.scss')
          .pipe(sass({
              outputStyle: 'compressed',
              includePaths: ['../../node_modules/susy/sass']
          }).on('error', sass.logError))
          .pipe(postcss([
              autoprefixer({browsers: ['> 5%', '> 5% in US', 'last 2 versions']})
          ]))
          .pipe(gulp.dest('./asset/css'));
  });
  
  gulp.task('css:watch', function () {
      gulp.watch('./asset/sass/*.scss', gulp.parallel('css'));
  });
  