How do I center this?

Was there an issue with the response I previously gave when you asked this ? Let me know if those styles didn't work for you, and we'll gladly investigate further as to why.

Thanks,
Alex

No worries. I hope that helped. If you need anything else, just let us know.

Finally, if you haven't already, please consider leaving a rating and review for JFBConnect, or our support, on the Joomla Extension Directory. It certainly isn't required, but is very appreciated:
extensions.joomla.org/extensions/social-...ook-integration/7215

Thanks,
Alex