gulp.task "style"

gulp.task("style", function() {
  gulp.src("sass/style.scss")
    .pipe(plumber())
    .pipe(sass())
    .pipe(postcss([
      autoprefixer({browsers: ["last 2 versions"]}),
      mqpacker({
        sort: function (a, b) {
          return a.localeCompare(b);
        }
      })
    ]))
    .pipe(gulp.dest("build/css"))
    .pipe(server.stream())
    .pipe(minify())
    .pipe(rename("style.min.css"))
    .pipe(gulp.dest("build/css"));
});