code: function () {
      return gulp.src(paths.admin.css)
        .pipe(gulpif(!production, sourcemaps.init()))
        .on('error', handleError('CSS'))
        .pipe(concat('style.min.css'))
        .pipe(gulpif(production, autoprefixer(config.autoprefixer_versions)))
        .pipe(gulpif(production, minifyCSS()))
        .pipe(sourcemaps.write())
        .pipe(gulp.dest(paths.admin.build + 'css/'));
    }
docs: ADMIN
   /*
  CSS