<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-fulid">
<div class="card">
<div class="card-header text-center display-4">
Gallery
</div>
<div class="card-body">
<div class="row">
<div class="col-md-12 text-center">
<button class="btn btn-outline-success filter-button" data-filter="all">সব জেলা</button>
<button class="btn btn-outline-success filter-button" data-filter="dhaka">ঢাকা</button>
<button class="btn btn-outline-success filter-button" data-filter="mymensingh">ময়মনসিংহ</button>
<button class="btn btn-outline-success filter-button" data-filter="rajshahi">রাজশাহী</button>
<button class="btn btn-outline-success filter-button" data-filter="khulna">খুলনা</button>
<button class="btn btn-outline-success filter-button" data-filter="chittagong">চট্টগ্রাম</button>
<button class="btn btn-outline-success filter-button" data-filter="sylhet">সিলেট</button>
<button class="btn btn-outline-success filter-button" data-filter="barisal">বরিশাল</button>
<button class="btn btn-outline-success filter-button" data-filter="rangpur">রংপুর</button>
</div>
</div>
<div class="row mt-4">
<div class="col-md-3 filter_box filter dhaka">
<div class="single-district">
<a href="#">
<h3>ঢাকা</h3>
<p><strong>বিভাগ:</strong> ঢাকা </p>
</a>
</div>
</div>
<div class="col-md-3 filter_box filter rajshahi">
<div class="single-district">