How do I change these <hr/> tags to vertical lines automatically when page width increases to allow three columns? On small devices, they properly separate rows. I'm using Bootstrap v4.
<div class="row">
<div class="col-md-4 col-sm-6 p-4">
<h2>Have a Question?</h2>
</div>
<div class="col-md-4 col-sm-6 text-center p-4">
<hr/>
<h3>FAQs</h3>
<p>Get more information about ordering, payments and product delivery.</p>
</div>
<div class="col-md-4 col-sm-6 text-center p-4">
<hr />
<h3 class="mb-4">Call Us</h3>
<p>Contact our product specialists</p>
</div>
</div>