[Plugin: Disqus Comment System] Weird display issue with Disqus login buttons…

We just installed Disqus and it seems to be working fine, except there’s a strange issue where underneath “Optional: Login below.” the social login buttons either don’t display on Firefox, or display very weird and not aligned correctly on Chrome. Yet the social login thumbs display fine on Internet Explorer… What’s going on here? You can check out the problem here: https://tinyurl.com/4u7lvkf