xxxxxxxxxx
<div class="card" style="width: 20rem">
<img class="card-img-top" src="..."
alt="Card image cap">
<div class="card-block">
<h4 class="card-title">Card title</h4>
<p class="card-text">
Some quick example text to build
on the card title and make up the
bulk of the card's content.
</p>
<a href="#" class="btn btn-primary">
Go somewhere
</a>
</div>
</div>