diff --git a/dist/bulma-slider.js b/dist/bulma-slider.js
index 4d651ee..45577c6 100644
--- a/dist/bulma-slider.js
+++ b/dist/bulma-slider.js
@@ -1,3 +1,6 @@
+(function () {
+'use strict';
+
 // Find output DOM associated to the DOM element passed as parameter
 function findOutputForSlider(element) {
   var idVal = element.id;
@@ -69,3 +72,5 @@ document.addEventListener('DOMContentLoaded', function() {
     }
   });
 });
+
+}());
diff --git a/dist/bulma-slider.min.js b/dist/bulma-slider.min.js
index 9b123b4..619ba57 100644
--- a/dist/bulma-slider.min.js
+++ b/dist/bulma-slider.min.js
@@ -1 +1,2 @@
-!function(t,e){if("function"==typeof define&&define.amd)define([],e);else if("undefined"!=typeof exports)e();else{e(),t.bulmaSliderMin={}}}(this,function(){"use strict";function t(t){var e,i=window.getComputedStyle(t,null);sliderWidth=parseInt(i.getPropertyValue("width"),10),e=t.getAttribute("min")?t.getAttribute("min"):0;var n=(t.value-e)/(t.getAttribute("max")-e);return{position:(n<0?0:n>1?sliderWidth:sliderWidth*n)+"px"}}document.addEventListener("DOMContentLoaded",function(){var e=document.querySelectorAll('input[type="range"].slider');[].forEach.call(e,function(e){var i=function(t){var e=t.id;outputs=document.getElementsByTagName("output");for(var i=0;i<outputs.length;i++)if(outputs[i].htmlFor==e)return outputs[i]}(e);if(i){if(e.classList.contains("has-output-tooltip")){var n=t(e);i.style.left=n.position}e.addEventListener("input",function(e){if(e.target.classList.contains("has-output-tooltip")){var n=t(e.target);i.style.left=n.position}i.value=e.target.value})}})})});
\ No newline at end of file
+(function(){'use strict';function a(a){var b=a.id;outputs=document.getElementsByTagName('output');for(var c=0;c<outputs.length;c++)if(outputs[c].htmlFor==b)return outputs[c]}function b(a){var b,c,d=window.getComputedStyle(a,null);sliderWidth=parseInt(d.getPropertyValue('width'),10),c=a.getAttribute('min')?a.getAttribute('min'):0;var e=(a.value-c)/(a.getAttribute('max')-c);return b=0>e?0:1<e?sliderWidth:sliderWidth*e,{position:b+'px'}}document.addEventListener('DOMContentLoaded',function(){var c=document.querySelectorAll('input[type="range"].slider');[].forEach.call(c,function(c){var d=a(c);if(d){if(c.classList.contains('has-output-tooltip')){var e=b(c);d.style.left=e.position}c.addEventListener('input',function(a){if(a.target.classList.contains('has-output-tooltip')){var c=b(a.target);d.style.left=c.position}d.value=a.target.value})}})})})();
+//# sourceMappingURL=data:application/json;charset=utf8;base64,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
diff --git a/gulpfile.js b/gulpfile.js
index b55404e..077e172 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -5,6 +5,7 @@ var gulp                        = require('gulp');
 var autoprefixer                = require('autoprefixer');
 var babel                       = require('gulp-babel');
 var bump                        = require('gulp-bump');
+var camelCase                   = require('camelcase');
 var cleancss                    = require('gulp-clean-css');
 var concat                      = require('gulp-concat');
 var conventionalChangelog       = require('gulp-conventional-changelog');
@@ -14,10 +15,12 @@ var fs                          = require('fs');
 var git                         = require('gulp-git');
 var gutil                       = require('gulp-util');
 var postcss                     = require('gulp-postcss');
+var rollup                      = require('gulp-better-rollup');
 var runSequence                 = require('run-sequence');
 var sass                        = require('gulp-sass');
+var sourcemaps                  = require('gulp-sourcemaps');
 var spawn                       = require('child_process').spawn;
-var uglify                      = require('gulp-uglify');
+var minify                      = require('gulp-babel-minify');
 
 /**
  * ----------------------------------------
@@ -44,27 +47,27 @@ var distJsFile     = package.name + '.min.js';
  * ----------------------------------------
  */
 
-// Uses Sass compiler to process styles, adds vendor prefixes, minifies, then
-// outputs file to the appropriate location.
-gulp.task('build:styles', ['build:styles:copy'], function() {
-  return gulp.src([paths.bulma + bulmaSassFile, paths.src + mainSassFile])
-    .pipe(concat(globalSassFile))
-    .pipe(sass({
-      style: 'compressed',
-      includePaths: [paths.bulma]
-    }))
-    .pipe(concat(distCssFile))
-    .pipe(postcss([autoprefixer({browsers: ['last 2 versions']})]))
-    .pipe(cleancss())
-    .pipe(gulp.dest(paths.dest));
-});
-
-// Copy original sass file to dist
-gulp.task('build:styles:copy', function() {
-  return gulp.src(paths.src + mainSassFile)
-    .pipe(concat(globalSassFile))
-    .pipe(gulp.dest(paths.dest));
-});
+ // Uses Sass compiler to process styles, adds vendor prefixes, minifies, then
+ // outputs file to the appropriate location.
+ gulp.task('build:styles', ['build:styles:copy'], function() {
+   return gulp.src([paths.bulma + bulmaSassFile, paths.src + mainSassFile])
+     .pipe(concat(globalSassFile))
+     .pipe(sass({
+       style: 'compressed',
+       includePaths: [paths.bulma]
+     }))
+     .pipe(concat(distCssFile))
+     .pipe(postcss([autoprefixer({browsers: ['last 2 versions']})]))
+     .pipe(cleancss())
+     .pipe(gulp.dest(paths.dest));
+ });
+
+ // Copy original sass file to dist
+ gulp.task('build:styles:copy', function() {
+   return gulp.src(paths.src + mainSassFile)
+     .pipe(concat(globalSassFile))
+     .pipe(gulp.dest(paths.dest));
+ });
 
 gulp.task('clean:styles', function(callback) {
   del([
@@ -82,28 +85,38 @@ gulp.task('clean:styles', function(callback) {
 
 // Concatenates and uglifies global JS files and outputs result to the
 // appropriate location.
-gulp.task('build:scripts', ['build:scripts:copy'], function() {
+gulp.task('build:scripts', function() {
   return gulp
     .src([paths.src + paths.jsPattern])
-    .pipe(concat(distJsFile))
-    .pipe(babel({
-      "presets": [
-        ["@babel/preset-env",  {
-          "modules": "umd",
-          "targets": {
-            "browsers": ["last 2 versions"]
-          }
-        }]
-      ]
+    .pipe(sourcemaps.init({
+      loadMaps: true
     }))
-    .pipe(uglify())
-    .pipe(gulp.dest(paths.dest));
-});
-
-// Copy original sripts file to dist
-gulp.task('build:scripts:copy', function() {
-  return gulp.src(paths.src + mainJsFile)
+    .pipe(rollup({
+        plugins: [babel({
+          babelrc: false,
+          sourceMaps: true,
+          exclude: 'node_modules/**',
+          presets: [
+            ["@babel/preset-env",  {
+              "modules": false,
+              "targets": {
+                "browsers": gutil.env.babelTarget ? gutil.env.babelTarget : ["last 2 versions"]
+              }
+            }]
+          ]
+        })]
+      }, {
+        format: gutil.env.jsFormat ? gutil.env.jsFormat : 'iife',
+        name: camelCase(package.name)
+      }
+    ))
     .pipe(concat(globalJsFile))
+    .pipe(gulp.dest(paths.dest))
+    .pipe(concat(distJsFile))
+    .pipe(minify().on('error', function(err) {
+      gutil.log(gutil.colors.red('[Error]'), err.toString())
+    }))
+    .pipe(sourcemaps.write())
     .pipe(gulp.dest(paths.dest));
 });
 
diff --git a/package.json b/package.json
index 0f3c222..4427317 100644
--- a/package.json
+++ b/package.json
@@ -31,11 +31,14 @@
     "@babel/preset-env": "^7.0.0-beta.39",
     "babel-core": "^7.0.0-beta.3",
     "bulma": "^0.6.2",
+    "camelcase": "^4.1.0",
     "conventional-github-releaser": "^2.0.0",
     "del": "^3.0.0",
     "gulp": "^3.9.1",
     "gulp-autoprefixer": "^4.1.0",
     "gulp-babel": "^7.0.1",
+    "gulp-babel-minify": "^0.3.0",
+    "gulp-better-rollup": "^3.0.0",
     "gulp-bump": "^3.1.0",
     "gulp-clean-css": "^3.9.2",
     "gulp-concat": "^2.6.1",
@@ -43,8 +46,10 @@
     "gulp-git": "^2.5.1",
     "gulp-postcss": "^7.0.1",
     "gulp-sass": "^3.1.0",
+    "gulp-sourcemaps": "^2.6.4",
     "gulp-uglify": "^3.0.0",
     "gulp-util": "^3.0.8",
+    "rollup-plugin-babel": "^3.0.3",
     "run-sequence": "^2.2.1"
   },
   "files": [