joe-brown
Hi
its custom html module, here is code
<ul class="social-list">
<li><a href="#" title="facebook"><span class="fa fa-facebook" aria-hidden="true"></span><span class="d-none">facebook</span></a></li>
<li><a href="#" title="twitter"><span class="fa fa-twitter" aria-hidden="true"></span><span class="d-none">twitter</span></a></li>
<li><a href="#" title="instagram"><span class="fa fa-instagram" aria-hidden="true"></span><span class="d-none">instagram</span></a></li>
<li><a href="#" title="vimeo"><span class="fa fa-vimeo" aria-hidden="true"></span><span class="d-none">vimeo</span></a></li>
</ul>
Kindly set the default editor to NONE or CodeMirror from Global configurations http://prntscr.com/rm90gz
Before editing the module.
Regards