HTML:
<div class="navbar navbar-expand-md navbar-dark bg-dark mb-4" role="navigation" width="100%">
<a class="navbar-brand" href="/dgda">DGDA|HOME</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarCollapse">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="/dgda">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="https://www.dgda.gov.bd/index.php/downloads/background">About</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" id="dropdown1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Pharmacies</a>
<ul class="dropdown-menu" aria-labelledby="dropdown1">
<li class="dropdown-item" ><a id="linkDesign" href="/dgda/pharmacies/requests">New Pharmacy Requests</a></li>
<li class="dropdown-item dropdown">
<a class="dropdown-toggle" id="dropdown1-1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">See Pharmacy List</a>
<ul class="dropdown-menu" aria-labelledby="dropdown1-1">
<li class="dropdown-item" ><a id="linkDesign" href="/dgda/pharmacies/allopathicRetailPharmacyView">Allopathic Retail Pharmacy</a></li>
<li class="dropdown-item" ><a id="linkDesign" href="/dgda/pharmacies/ayurvedic-retail-pharmacy-view">Ayurvedic Retail Pharmacy</a></li>
<li class="dropdown-item" ><a id="linkDesign" href="/dgda/pharmacies/unani-retail-pharmacy-view">Unani Retail Pharmacy</a></li>
<li class="dropdown-item" ><a id="linkDesign" href="/dgda/pharmacies/herbal-retail-pharmacy-view">Herbal Retail Pharmacy</a></li>
<li class="dropdown-item" ><a id="linkDesign" href="/dgda/pharmacies/homeopathic-and-biochemic-retail-pharmacy-view">Homeopathic and Biochemic Retail Pharmacy</a></li>
<li class="dropdown-item" ><a id="linkDesign" href="https://www.dgda.gov.bd/index.php/pharmacies/whole-sale-pharmacy-view-2">Model Pharmacy</a></li>
</ul>
</li>
</ul>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" id="dropdown2" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown2</a>
<ul class="dropdown-menu" aria-labelledby="dropdown2">
<li class="dropdown-item" href="#"><a>Action 2 A</a></li>
<li class="dropdown-item" href="#"><a>Action 2 B</a></li>
<li class="dropdown-item" href="#"><a>Action 2 C</a></li>
<li class="dropdown-item dropdown">
<a class="dropdown-toggle" id="dropdown2-1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown2.1</a>
<ul class="dropdown-menu" aria-labelledby="dropdown2-1">
<li class="dropdown-item" href="#"><a>Action 2.1 A</a></li>
<li class="dropdown-item" href="#"><a>Action 2.1 B</a></li>
<li class="dropdown-item" href="#"><a>Action 2.1 C</a></li>
<li class="dropdown-item dropdown">
<a class="dropdown-toggle" id="dropdown2-1-1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown2.1.1</a>
<ul class="dropdown-menu" aria-labelledby="dropdown2-1-1">
<li class="dropdown-item" href="#"><a>Action 2.1.1 A</a></li>
<li class="dropdown-item" href="#"><a>Action 2.1.1 B</a></li>
<li class="dropdown-item" href="#"><a>Action 2.1.1 C</a></li>
</ul>
</li>
<li class="dropdown-item dropdown">
<a class="dropdown-toggle" id="dropdown2-1-2" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown2.1.2</a>
<ul class="dropdown-menu" aria-labelledby="dropdown2-1-2">
<li class="dropdown-item" href="#"><a>Action 2.1.2 A</a></li>
<li class="dropdown-item" href="#"><a>Action 2.1.2 B</a></li>
<li class="dropdown-item" href="#"><a>Action 2.1.2 C</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
<form class="form-inline mt-2 mt-md-0">
<input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</div>
JavaScript:
$(document).ready(function () {
$('.navbar .dropdown-item').on('click', function (e) {
var $el = $(this).children('.dropdown-toggle');
var $parent = $el.offsetParent(".dropdown-menu");
$(this).parent("li").toggleClass('open');
if (!$parent.parent().hasClass('navbar-nav')) {
if ($parent.hasClass('show')) {
$parent.removeClass('show');
$el.next().removeClass('show');
$el.next().css({"top": -999, "left": -999});
} else {
$parent.parent().find('.show').removeClass('show');
$parent.addClass('show');
$el.next().addClass('show');
$el.next().css({"top": $el[0].offsetTop, "left": $parent.outerWidth() - 4});
}
e.preventDefault();
e.stopPropagation();
}
});
$('.navbar .dropdown').on('hidden.bs.dropdown', function () {
$(this).find('li.dropdown').removeClass('show open');
$(this).find('ul.dropdown-menu').removeClass('show open');
});
});