<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>
<br>
<div class="container">
<div class="row">
<div class="col-md-3"></div>
<div class="col-md-6">
<div class="accordion for-mobile" id="accordionExample">
<div class="card">
<div class="card-header" id="headingOne">
<h2 class="mb-0">
<button class="btn btn-link btn-block text-left" type="button" data-toggle="collapse" data-target="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
<b>WEBSITES</b>
</button>
</h2>
</div>
<div id="collapseOne" class="collapse show" aria-labelledby="headingOne" data-parent="#accordionExample">
<div class="card-body">
<nav class="nav flex-column">
<a class="nav-link" href="#">About Us</a>
<a class="nav-link" href="#">Contact Us</a>
<a class="nav-link" href="#">How It Works</a>
<a class="nav-link" href="#">Plans & Pricing</a>
<a class="nav-link" href="#">Portfolio</a>
<a class="nav-link" href="#">Theme Library</a>
</nav>
</div>
</div>
</div>
<div class="card">
<div class="card-header" id="headingTwo">
<h2 class="mb-0">
<button class="btn btn-link btn-block text-left collapsed" type="button" data-toggle="collapse" data-target="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
