1. Go to THIS site, click Sign Up. Create your account and login into it.
2. How to edit your Cbox: Look & Feel and choose what you want to do: to change the box size, go to Layout Options; to change the colours and fonts, choose Colors & Fonts. So when you finish it, click Publish to get the code.
3. Go to Customize > Description. Paste the code in your description, where do you want it to appear. Save and it’s done!
Like this post if you agree! ;)