Textarea Tabs + Syntax Highlighting

<div class="Editable Textarea"> <h1> This is a fully editable textarea which auto highlights syntax.</h1> <p> Type or paste any code in here...</p> <div> <?php var simple = "coding"; ?> <script> with = "Tab or double space functionality"; </script>

Source: https://codepen.io/aktorou/pen/YWxorK