JSFiddle - React, Tailwind, and code Playground

by envira

HTML

<div class="menubar">
<ul>
<li><a href="#">Link 1</a> </li>
<li><a href="#">Link 2 </a></li>
<li><a href="#">Link 3 </a></li>
<li><a href="#">Link 4</a>
<ul class="submenu">
<li><a href="#">Link 1</a> </li>
<li><a href="#">Link 2 </a></li>
<li><a href="#">Link 3 </a></li>
</ul>
</li>
</ul>
</div>

CSS

.menubar {
    width: auto;
    height: 40px;
    line-height: 40px;
    padding: 0px 10px;
    margin:0;
    background: #ddd;
    font-family: Lucida Grande, Lucida Sans Unicode, Sans, Sans-serif;
}
.menubar ul {
    margin:0;
    padding:0;
}

.menubar ul li {
    display: inline-block;
    list-style:none;
}

.submenu {
    top:40px;
    position: absolute;
    background: #2a2a2a;
}

.submenu li {
    position: relative;
    display: inline !important;
    float: left;
}

JavaScript

$('.menubar ul .submenu').hide();
	$('.menubar ul li').hover( 
		function() {
			$(this).children('.submenu').slideDown('fast');
		}, 
		function() {
			$(this).children('.submenu').hide();
		}
	);