<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>
<div class="container">
<div class="col-xl-3">
<div class="widget-title">
<h4>categories</h4>
</div>
<div class="widget-content">
<ul id="accordion">
<li>
<h4>Collection <span class="plusminus">+</span></h4>
<ul>
<li><a href="#">Golf</a></li>
<li><a href="#">Cricket</a></li>
<li><a href="#">Football</a></li>
</ul>
</li>
<li>
<h4>Technology <span class="plusminus">+</span></h4>
<ul>
<li><a href="#">Macbook</a></li>
<li><a href="#">Ipad</a></li>
<li><a href="#">Iphone</a></li>
</ul>
</li>
<li>
<h4>Furniture <span class="plusminus">+</span></h4>
<ul>
<li><a href="#">Chairs</a></li>
<li><a href="#">Tables</a></li>
<li><a href="#">Storage</a></li>
<li><a href="#">Office</a></li>
</ul>
</li>