Social media urls in parallax

Hi,
I can’t figure out in the code where the twitter,facebook and instagram links at set. I must be missing something obvious and silly but I’ve been looking at this for a few hours now. I’ve tried to reverse engineer in Firefox using the Firebug inspector. No joy so far.

This is the site – https://www.fitbeautystudios.co.uk/

Screenshot – https://snag.gy/dFT5u.jpg

Any idea ?