JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>

</head>

<body>
<div class="wrapper-demo">
					<div id="dd" class="wrapper-dropdown-3" tabindex="1">
						<span >Hi, Suresh</span>
						<ul class="dropdown">
							<li><a href="#"><i class="icon-user"></i>Profile</a></li>
							<li><a href="#"><i class="icon-cog"></i>Settings</a></li>
							<li><a href="#"><i class="icon-remove"></i>Log out</a></li>
						</ul>
					</div>
</body>
</html>

CSS

/* General Demo Style */
body {
	font-family: 'Lato', 'Arial', sans-serif;
	font-weight: 300;
	font-size: 15px;
	color: #333;
	-webkit-font-smoothing: antialiased;
	overflow-y: scroll;
	overflow-x: hidden;
}

a {
	color: #555;
	text-decoration: none;
}

.container {
	width: 100%;
	position: relative;
}

.clr {
	clear: both;
	padding: 0;
	height: 0;
	margin: 0;
}

.main {
	width: 90%;
	margin: 0 auto;
	position: relative;
}

.container > header {
	margin: 10px;
	padding: 20px 10px 10px 10px;
	position: relative;
	display: block;
	text-shadow: 1px 1px 1px rgba(0,0,0,0.2);
    text-align: center;
}

.container > header h1 {
	font-size: 30px;
	line-height: 38px;
	margin: 0;
	position: relative;
	font-weight: 300;
	color: #666;
	text-shadow: 1px 1px 1px rgba(255,255,255,0.7);
}

.container > header h2 {
	font-size: 14px;
	font-weight: 300;
	margin: 0;
	padding: 15px 0 5px 0;
	color: #888;
	font-family: Cambria, Georgia, serif;
	font-style: italic;
	text-shadow: 1px 1px 1px rgba(255,255,255,0.9);
}

/* Header Style */
.codrops-top {
	line-height: 24px;
	font-size: 11px;
	background: #fff;
	background: rgba(255, 255, 255, 0.5);
	text-transform: uppercase;
	z-index: 9999;
	position: relative;
	font-family: Cambria, Georgia, serif;
	box-shadow: 1px 0px 2px rgba(0,0,0,0.2);
}

/* Clearfix hack by Nicolas Gallagher: http://nicolasgallagher.com/micro-clearfix-hack/ */

.codrops-top:before,
.codrops-top:after {
    content: " "; /* 1 */
    display: table; /* 2 */
}

.codrops-top:after {
    clear: both
}

.codrops-top a {
	padding: 0px 10px;
	letter-spacing: 1px;
	color: #333;
	display: inline-block;
}

.codrops-top a:hover {
	background: rgba(255,255,255,0.6);
}

.codrops-top span.right {
	float: right;
}

.codrops-top span.right a {
	float: left;
	display: block;
}

/* Demo Buttons Style */
.codrops-demos {
    text-align:center;
	display: block;
	line-height: 30px;
	padding: 5px 0px;
}

.codrops-demos a {
    display: inline-block;
	margin: 0px 4px;
	padding: 0px...

JavaScript

function DropDown(el) {
				this.dd = el;
				this.initEvents();
			}
			DropDown.prototype = {
				initEvents : function() {
					var obj = this;

					obj.dd.on('click', function(event){
						$(this).toggleClass('active');
						event.stopPropagation();
					});	
				}
			}

			$(function() {

				var dd = new DropDown( $('#dd') );

				$(document).click(function() {
					// all dropdowns
					$('.wrapper-dropdown-3').removeClass('active');
				});

			});