If you're looking at this and not seeing any difference between the "before" and "after" versions, it's because HTTPS Everywhere is redirecting all github urls to their SSL version, so http://jessepollak.github.io/card/ redirects to https://jessepollak.github.io/card/ then can't load any of it's javascript dependencies due to the http/https mismatch.

Bonus points for the form still working right through all of that.

Same for me, the yandex domain they're loading hljs from seems to be blocked. The hljs call is in the same script block as the line to initiate the fancy stuff, so it fails and that line's never reached. Paste this into the console to run that manually:

    $('.active form').card({ container: $('.card-wrapper')})