<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="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div class="container">
<div id="carousel-example-2" class="carousel slide carousel-fade" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carousel-example-2" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-2" data-slide-to="1"></li>
<li data-target="#carousel-example-2" data-slide-to="2"></li>
</ol>
<div class="carousel-inner" role="listbox">
<div class="carousel-item active">
<div class="view">
<img class="d-block w-100" src="https://mdbootstrap.com/img/Photos/Slides/img%20(68).jpg" alt="First slide">
<div class="mask rgba-black-light"></div>
</div>
<div class="carousel-caption">
<h3 class="h3-responsive">Light mask</h3>
<p>First text</p>
</div>
</div>
<div class="carousel-item">
<div class="view">
<img class="d-block w-100" src="https://mdbootstrap.com/img/Photos/Slides/img%20(6).jpg" alt="Second slide">
<div class="mask rgba-black-strong"></div>
</div>
<div class="carousel-caption">
<h3 class="h3-responsive">Strong mask</h3>
<p>Secondary text</p>
