<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<textarea cols="80" id="editor1" name="editor1" rows="10"></textarea>
<script src="https://cdn.ckeditor.com/4.15.1/standard-all/ckeditor.js"></script>
<script>
CKEDITOR.replace('editor1', {
fullPage: true,
extraPlugins: 'docprops',
// Disable content filtering because if you use full page mode, you probably
// want to freely enter any HTML content in source mode without any limitations.
allowedContent: true,
height: 320
});
</script>
