Subscript and Superscript

HTML

<div id="eg-subscript-superscript" class="text-small">
          <p>Use the <strong>buttons</strong> option to add the subscript and superscript buttons in the rich text editor's toolbar.</p>
        </div>

JAVASCRIPT

<script>
  $(function() {
    $('div#eg-subscript-superscript').editable({
      inlineMode: false,

      // Include the subscript and superscript buttons.
      buttons: ['bold', 'italic', 'sep', 'indent', 'outdent',
        'insertOrderedList', 'insertUnorderedList', 'sep',
        'createLink', 'insertImage', 'subscript', 'superscript'],
    })
  });
</script>