<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div class="container">
<div class="row">
<h2 style="color: #1C9DDE; text-align: center;">Mega Menu By JASKARAN</h2>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse" id="myNavbar">
<ul class="nav navbar-nav">
<li class="active"><a href="index.html">HOME</a></li>
<li><a href="about.html">ABOUT</a></li>
<li class="dropdown menu-large">
<a href="services.html" class="dropdown-toggle" data-toggle=""> Mega Dropdown menu</a>
<ul class="dropdown-menu megamenu row">
<li class="col-sm-3">
<ul class="main-ul">
<li class="main-ul-li"><a href="#" class="nav-child main-ul-li-a">Main menu 1</a></li>
<li class="main-ul-li"><a href="#" class="main-ul-li-a">Main menu 2</a></li>
<li class="main-ul-li"><a href="#" class="main-ul-li-a">Main menu 3</a></li>
<li class="main-ul-li"><a href="#" class="main-ul-li-a">Main menu 4</a>
<ul class="inner-ul">
<li class="inner-ul-li"><a href="#" class="inner-ul-li-a">Main menu 4.1</a></li>
<li class="inner-ul-li"><a href="#" class="inner-ul-li-a">Main menu 4.2</a></li>
<li class="inner-ul-li"><a href="#" class="inner-ul-li-a">Main menu 4.3</a></li>
</ul>
</li>
<li class="main-ul-li"><a href="#" class="main-ul-li-a">Main menu 5</a>