<div class="social-links social-links-dark">
<a href="#">
<i class="fa fa-facebook"></i>
</a>
</div>
<div class="social-links social-links-light social-links-circle">
<a href="#">
<i class="fa fa-facebook"></i>
</a>
</div>
<div class="social-links social-links-glass social-links-circle">
<a href="#">
<i class="fa fa-facebook"></i>
</a>
</div>
<div class="social-links social-links-dark">
<a href="#">
<i class="fa fa-facebook"></i>
</a>
</div>