Alternatively, you can align each link to the sides with .previous
and .next
<ul class="pager">
<li class="previous">
<a href="#"><i class="fa fa-long-arrow-left"></i> Previous</a>
</li>
<li class="next">
<a href="#">Next <i class="fa fa-long-arrow-right"></i></a>
</li>
</ul>