Social media icons not visible

Hi, I have read through the previous threads to try to make the icons visible on my site (www.theishgirlsdish.com). I compared the CSS (it was the same), emptied my cache (still couldn’t see them), and checked the html to see if there were any obvious errors (there don’t seem to be). When I hover over where there supposed to be, the hand icon appears, so I know they’re there – they are just invisible. Any suggestions?
Thanks for the help – and by the way, LOVE the theme!