Rewrite JS code, add parceljs with babel

.babelrc

@@ -0,0 +1,4 @@
+{
+  "presets": ["env"],
+  "plugins": ["transform-runtime"]
+}

.gitignore

@@ -3,3 +3,5 @@ _site
 .jekyll-metadata
 /.DS_Store
 .DS_Store
+node_modules
+.cache

_includes/code-box.html

@@ -1,7 +1,14 @@
 <div class="textarea-box">
-	<textarea autofocus 
-		class="textarea textarea-left js-input" 
-		placeholder="/* Put your CSS code in the left column, instead of example, to add or remove unnecessary prefixes. */"></textarea>
+	<textarea autofocus
+			  class="textarea textarea-left js-input">{% if page.lang == 'ru' %}/* Вставьте ваш CSS сюда вместо этого примера */{% endif %}{% if page.lang == 'en' %}/* Paste your CSS here instead of this example */{% endif %}
 
-	<pre class="textarea textarea-right" contenteditable=""><code class="language-css js-output">/* Here is your CSS with the appropriate prefixes */</code></pre>
+.example {
+    display: flex;
+    transition: all .5s;
+    user-select: none;
+    background: linear-gradient(to bottom, white, black);
+}</textarea>
+
+<pre class="textarea textarea-right"
+		contenteditable=""><code class="language-css js-output"><strong>Loading...</strong></code></pre>
 </div>

_includes/scripts.html

@@ -8,15 +8,7 @@
 });
 </script>
 
-<script src="/assets/redirect.js?v={{ site.time | date: '%s%N' }}"></script>
-<script src="/assets/log2.js"></script>
-<script src="https://rawgit.com/ai/autoprefixer-rails/master/vendor/autoprefixer.js"
-        crossorigin="anonymous"></script>
-<script>window.autoprefixer || document.write('<script src="https://wzrd.in/standalone/autoprefixer@latest" crossorigin="anonymous">\x3C/script>');</script>
-<script>window.autoprefixer || document.write('<script src="/assets/autoprefixer.js" crossorigin="anonymous">\x3C/script>');</script>
-<script src="/assets/code.js?v={{ site.time | date: '%s%N' }}"></script>
-<script async
-        src="/assets/highlight.js"></script>
+<script src="/assets/main.js?v={{ site.time | date: '%s%N' }}"></script>
 
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