Hi guys,
just a note that, maybe, would be good to add to the documentation:
CSS is case sensitive, so, right now the code:
<div id="jfbc_loginregister" class="row-fluid jfbc_<?php echo $this->providerName; ?>">
will produce the CSS classes: jfbc_Facebook, jfbc_Google, jfbc_Instagram, jfbc_Twitter... etc.