Here's what it looks like: screenshot.

And, here's how to do it. Paste the following into your Free Nodelet:

<script type="text/javascript" src="//code.jquery.com/jquery-1.11.1.mi
+n.js"></script>
<script type="text/javascript" src="//maxcdn.bootstrapcdn.com/bootstra
+p/3.2.0/js/bootstrap.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/h
+ighlight.js/8.2/highlight.min.js"></script>
<script type="text/javascript" src="//buzzword.org.uk/2014/pm/pm2.js">
+</script>
[download]

Then in Nodelet Settings make sure your Free Nodelet isn't hidden.

If you want to play around with the idea, adjust the buzzword.org.uk URL to point to a script file on your own server; grab a copy of the Javascript and CSS files and have fun!