<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div class="container">
<div class="container-fluid">
<h2>Bootstrap 4 Horizontal Scrolling Cards with Flexbox</h2>
<div class="bg-primary" style="height: 200px; width: 200px;">
<div class="d-flex flex-row flex-nowrap">
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
<div class="card card-body">Card</div>
</div>
</div>
</div>
</div>
