JSFiddle - React, Tailwind, and code Playground

by Iqbal Kabir

HTML

<div id="side_nav" class="widget inner-box">
	<div>
		<ul>
			<li><a href="#"> Home</a></li>
			<li class="dropdown">
				<a href="#"> About us</a>
				<ul>
					<li><a href="#">Brief history</a></li>
					<li><a href="#">Organogram</a></li>
					<li><a href="#">Vision, mission and strategy</a></li>
				</ul>
			</li>
			<li class="dropdown">
				<a href="#"> Academics</a>
				<ul>
					<li><a href="#">Notice board</a></li>
					<li><a href="#">Admission</a></li>
					<li><a href="#">Syllabus</a></li>
					<li><a href="#">Academic calendar</a></li>
					<li><a href="#">Results</a></li>
				</ul>
			</li>
			<li class="active"><a href="#"> News</a></li>
			<li><a href="#"> Photo gallery</a></li>
			<li><a href="#"> Library</a></li>
			<li><a href="#"> Contact us</a></li>
		</ul>
	</div>
</div>

CSS

#side_nav {
	background: none;
	border: 0 none transparent;
    width: 200px;
}
#side_nav div > ul {
	margin: -15px 0;
	font-weight: bold;
    list-style: none;
}
#side_nav li {
	background: rgba(255, 255, 255, 0.2);
	border: 1px solid #dfdfdf;
	margin-top: 2px;
    
	background: none\0/;
	-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#33FFFFFF,endColorstr=#33FFFFFF)";
	zoom: 1;
}
#side_nav li:first-child {
	margin-top: 0;
}
#side_nav a {
	text-decoration: none;
	display: block;
	padding: 5px 10px 5px 15px;
}
#side_nav div > ul > li {
	margin-left: -15px;
	margin-right: -15px;
	position: relative;
}
#side_nav div > ul > li:first-child > a {
	padding-top: 8px;
	padding-bottom: 8px;
	background: #666;
	color: #fff;
}
#side_nav div > ul > li.active,
#side_nav div > ul > li:not(:first-child):hover,
#side_nav div > ul > li:hover li {
	border-top-color: #666;
	border-bottom-color: #666;
}
#side_nav div > ul > li.active > a,
#side_nav div > ul > li:hover > a,
#side_nav div > ul > li:hover li a {
	background: rgba(100,100,100,0.8);
}
#side_nav div > ul > li.active > a,
#side_nav div > ul > li:hover a {
	color: #fff;
}

/* Submenu */
#side_nav div > ul > li ul {
	display: none;
	margin: 0;
	position: absolute;
	left: 100%;
	top: -1px;
	white-space: nowrap;
    list-style: none;
    padding: 0;
}
#side_nav div > ul > li:hover ul {
	display: block;
}
#side_nav div > ul > li ul li {
}
#side_nav div > ul > li ul a {
	padding-left: 25px;
	padding-right: 25px;
	font-style: italic;
}
#side_nav div > ul > li ul a:hover {
	background: #666;
}