diff --git a/gulpfile.js b/gulpfile.js
deleted file mode 100644
index 7348f54..0000000
--- a/gulpfile.js
+++ /dev/null
@@ -1,135 +0,0 @@
-'use strict';
-
-//------------------------
-//:: Initiate npm-modules
-
-const   gulp            = require('gulp'),
-        sass            = require('gulp-sass')(require('sass')),
-        concat          = require('gulp-concat'),
-        livereload      = require('gulp-livereload'),
-        notify          = require('gulp-notify'),
-        plumber         = require('gulp-plumber'),
-        rename          = require('gulp-rename'),
-        postcss         = require('gulp-postcss'),
-        autoprefixer    = require('autoprefixer'),
-        cssnano         = require('cssnano'),
-        merge2          = require('merge2'),
-        rimraf          = require('rimraf');
-
-
-//------------------------
-//:: Config parameter
-
-var Config = {
-    inputDir: '_source/',
-    outputDir: '_dist/'
-}
-
-var SassConfig = {
-    inputDir:    '_source/scss/',
-    outputDir:   '_dist/css/',
-    options: {
-        outputStyle:   'expanded'
-    }
-}
-
-
-//------------------------
-//:: Tasks
-
-// compile scss
-function scss_addons() {
-    var onError = function(err) {
-        notify.onError({
-            title:      'scss_addons',
-            subtitle:   'Error!',
-            message:    '❌  <%= error.message %>',
-            sound:      'Submarine'
-        })(err);
-    this.emit('end');
-    };
-
-    return merge2(
-        gulp.src([
-            'node_modules/sanitize.css/sanitize.css'
-    ]))
-    .pipe(concat('addons.css'))
-    .pipe(postcss([autoprefixer()]))
-    .pipe(gulp.dest(SassConfig.outputDir))
-    .pipe(postcss([cssnano()]))
-    .pipe(rename({suffix: '.min'}))
-    .pipe(gulp.dest(SassConfig.outputDir))
-    .pipe(livereload())
-    .pipe(notify({
-        title:      'scss_addons',
-        subtitle:   'Success!',
-        message:    '✅  SCSS compiled',
-        timeout:    '2'
-    }));
-}
-
-function scss_main() {
-    var onError = function(err) {
-        notify.onError({
-            title:      'scss_main',
-            subtitle:   'Error!',
-            message:    '❌  <%= error.message %>',
-            sound:      'Submarine'
-        })(err);
-    this.emit('end');
-    };
-
-    return gulp
-    .src(SassConfig.inputDir + '*.scss')
-    .pipe(concat('styles.css'))
-    .pipe(plumber({errorHandler: onError}))
-    .pipe(sass(SassConfig.options).on('error', sass.logError))
-    .pipe(postcss([autoprefixer()]))
-    .pipe(gulp.dest(SassConfig.outputDir))
-    .pipe(postcss([cssnano()]))
-    .pipe(rename({suffix: '.min'}))
-    .pipe(gulp.dest(SassConfig.outputDir))
-    .pipe(livereload())
-    .pipe(notify({
-        title:      'scss_main',
-        subtitle:   'Success!',
-        message:    '✅  SCSS compiled',
-        timeout:    '2'
-    }));
-};
-
-// Copy those other files
-function copy(done) {
-    gulp.src([Config.inputDir + '**/*.*'])
-        .pipe(gulp.dest(Config.outputDir))
-        .pipe(livereload())
-    done();
-};
-
-// Watch for changes
-function watch() {
-    livereload.listen();
-    gulp.watch(SassConfig.inputDir + '*.scss', scss_main);
-    gulp.watch(Config.inputDir + '*.html', copy);
-};
-
-// delete everything in _dist
-function cleanup(cb) {
-    return rimraf(Config.outputDir + '*', cb)
-};
-
-
-//------------------------
-//:: Define tasks
-
-// complex tasks
-const build = gulp.series(cleanup, gulp.parallel(copy, scss_addons, scss_main));
-
-// export tasks
-exports.scss_main = scss_main;
-exports.scss_addons = scss_addons;
-exports.copy = copy;
-exports.watch = watch;
-exports.cleanup = cleanup;
-exports.build = build;
-exports.default = build;