<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div class="container">
<div class="kpx_login">
<h3 class="kpx_authTitle">Login or <a href="#">Sign up</a></h3>
<div class="row kpx_row-sm-offset-3 kpx_socialButtons">
<div class="col-xs-2 col-sm-2">
<a href="#" class="btn btn-lg btn-block kpx_btn-facebook" data-toggle="tooltip" data-placement="top" title="Facebook">
<i class="fa fa-facebook fa-2x"></i>
<span class="hidden-xs"></span>
</a>
</div>
<div class="col-xs-2 col-sm-2">
<a href="#" class="btn btn-lg btn-block kpx_btn-twitter" data-toggle="tooltip" data-placement="top" title="Twitter">
<i class="fa fa-twitter fa-2x"></i>
<span class="hidden-xs"></span>
</a>
</div>
<div class="col-xs-2 col-sm-2">
<a href="#" class="btn btn-lg btn-block kpx_btn-google-plus" data-toggle="tooltip" data-placement="top" title="Google Plus">
<i class="fa fa-google-plus fa-2x"></i>
<span class="hidden-xs"></span>
</a>
</div>
</div><br>
<div class="row kpx_row-sm-offset-3 kpx_socialButtons">
<div class="col-xs-2 col-sm-2">
<a href="#" class="btn btn-lg btn-block kpx_btn-github" data-toggle="tooltip" data-placement="top" title="GitHub">
<i class="fa fa-github fa-2x"></i>
<span class="hidden-xs"></span>
</a>