<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>
<body>
<div class="container">
<div class="row">
<div class="container">
<blockquote class="quote-card">
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
</p>
<cite>
Lorem I psum
</cite>
</blockquote>
<blockquote class="quote-card blue-card">
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Omnis vero!
</p>
<cite>
Lorem
</cite>
</blockquote>
<blockquote class="quote-card green-card">
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Doloremque at, architecto culpa sint veniam temporibus!!
</p>
<cite>
Lorem ipsum
</cite>