JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                    <span class="sr-only">Toggle navigation</span>
                   <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                  <span class="icon-bar"></span>
                </button>
                 <a class="navbar-brand" href="#">Brand</a>
            </div>

            <div class="navbar-collapse collapse navbar-responsive-collapse">
                <ul class="nav navbar-nav">
                    
                    <li data-ui-sref-active="active"><a data-ui-sref="home">Home</a></li>
                    
                <ul class="nav navbar-nav navbar-right">
            
                    <li class="dropdown mega-dropdown">
                       
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown" data-settings-cog>Hover Me</a>

                        <ul class="dropdown-menu mega-dropdown-menu" style="padding: 25px;">
                            <li class="col-sm-3" style="background-color: #1c2b36;">
                                <ul>
                                    <li class="dropdown-header">Account</li>
                                    <li class="divider"></li>
                                    <li><a href="#">User Profile</a></li>
                                    <li><a href="#">Edit Profile</a></li>


                                </ul>
                            </li>

                            <li class="col-sm-3" style="background-color: #1c2b36;">
                                <ul>
                                   ...

CSS

.mega-dropdown {
  position: static !important;
  width:100%;
  background: none;

}
@media (min-width: 768px) {

    .mega-dropdown-menu {
        padding: 20px 0px;
        width: 50%;
        box-shadow: none;
        -webkit-box-shadow: none;
    }

}

.mega-dropdown-menu > li > ul {
  padding: 0;
  margin: 0;
}
.mega-dropdown-menu > li > ul > li {
  list-style: none;
}
.mega-dropdown-menu > li > ul > li > a {
  display: block;
  padding: 3px 20px;
  clear: both;
  font-weight: normal;
  line-height: 1.428571429;
  color: #999;
  white-space: normal;
}
.mega-dropdown-menu > li ul > li > a:hover,
.mega-dropdown-menu > li ul > li > a:focus {
  text-decoration: none;
  color: #444;
  background-color: #f5f5f5;
}
.mega-dropdown-menu .dropdown-header {
  color: #E7F3EF;
  font-size: 13px;
  /*font-weight:bold;*/
}
.mega-dropdown-menu form {
    margin:3px 20px;
}
.mega-dropdown-menu .form-group {
    margin-bottom: 3px;
}


.navbar-inverse {
    background-color: #1c2b36;
    border-color: #E7E7E7;
}

.navbar-inverse .navbar-nav .open .dropdown-menu>li>a, .navbar-inverse .navbar-nav .open .dropdown-menu {
     background-color: #1c2b36;
    color:#ffffff;
  }

JavaScript

$(document).ready(function () {
    $('.navbar-inverse .navbar-nav > li.dropdown').hover(function () {
        $('ul.dropdown-menu', this).stop(true, true).slideDown('fast');
        $(this).addClass('open');
    }, function () {
        $('ul.dropdown-menu', this).stop(true, true).slideUp('fast');
        $(this).removeClass('open');
    });
});