<nav class="horizontal-menu plain">
	<ul>
		<li class="active"><a href='#'>Link</a></li>
		<li><a href='#'>Link</a></li>
		<li><a href='#'>Link</a></li>
		<li><a href='#'>Link</a></li>
		<li><a href='#'>Link</a></li>
		<li><a href='#'>Link</a></li>
	</ul>
</nav>

<nav class="horizontal-menu dropdown">
	<ul>
		<li class="active">
			<a>Item 1</a>
			<div>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
			</div>
		</li>
		<li>
			<a>Item 2</a>
			<div>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
			</div>
		</li>
		<li>
			<a>Item 3</a>
			<div>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
			</div>
		</li>
		<li>
			<a>Item 4</a>
			<div>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
			</div>
		</li>
		<li>
			<a>Item 5</a>
			<div>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
				<a>Link</a>
			</div>
		</li>
		<li>
			<a>Item 6</a>
			<div>
				<a>Link 1</a>
				<a>Link 2</a>
				<a>Link 3</a>
				<a>Link 4</a>
				<a>Link 5</a>
				<a>Link 6</a>
			</div>
		</li>
	</ul>
</nav>
/******************************
	      Boilerplate Css
******************************/

* {
	box-sizing: border-box;
	margin: 0px;
	padding: 0px;
}

html {
	height: 100%;
}

body {
	background: #191919;
	color: #404040;
	font: 12px/1.4 Arial;
	min-width: 1300px;
	position: relative;
}

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

ul {
	list-style: none;
}


/******************************
	  Navigation Menu
******************************/

.horizontal-menu {
	background-color: #2c2d2f;
	color: #BEBEBE;
	display: block;
	height: 50px;
	margin: 20px auto;
	max-width: 1100px;
}


/******************************
					Globals
******************************/

.horizontal-menu.plain,
.horizontal-menu.dropdown {
	display: block;
}

.horizontal-menu.plain li,
.horizontal-menu.dropdown li {
	float: left;
	height: 100%;
	width: 16.6666%;
}

.horizontal-menu.plain li a,
.horizontal-menu.dropdown li > a {
	display: block;
	height: 100%;
	line-height: 50px;
	text-align: center;
	transition: background-position 0.2s ease 0s;
}

.horizontal-menu.plain li a,
.horizontal-menu.dropdown li > div > a {
	transition: background-position 0.1s ease 0s;
}

.horizontal-menu.plain li:not(.active):hover a,
.horizontal-menu.dropdown li > div > a:hover {
	color: #FFF;
	background-position: 100% 0;
}

.horizontal-menu.plain li.active a:active,
.horizontal-menu.dropdown > div:not(.active):hover > a:active {
	background: #BA3032;
	color: #FFF;
}


/******************************
    Plain Horizontal Menu
******************************/

.horizontal-menu.plain li a {
	background: #2c2d2f linear-gradient(to left, #3B3D3F 50%, #2c2d2f 50%) repeat scroll 0 0 / 200% 100%;
}

.horizontal-menu.plain li.active a {
	background: #DB3839;
	color: #FFF;
}


/******************************
Horizontal Menu With Dropdowns
******************************/

.horizontal-menu.dropdown li,
.horizontal-menu.dropdown li > a {
	transition: background-color 0.2s ease;
}

.horizontal-menu.dropdown li {
	position: relative;
}

.horizontal-menu.dropdown li > a {
	text-transform: uppercase;
}

.horizontal-menu.dropdown li > div {
	background: #2C2D2F;
	display: none;
	min-width: 200%;
	overflow: hidden;
	position: absolute;
	padding: 10px;
	z-index: 999;
}

.horizontal-menu.dropdown li:not(:first-of-type):not(:last-of-type) > div {
	left: -50%;
	border-radius: 0 0 3px 3px;
}

.horizontal-menu.dropdown li:first-of-type > div {
	left: 0;
	border-radius: 0 0 3px 0;
}

.horizontal-menu.dropdown li:last-of-type > div {
	right: 0;
	border-radius: 0 0 0 3px;
}

.horizontal-menu.dropdown li:hover > div {
	display: block;
}

.horizontal-menu.dropdown li:hover,
.horizontal-menu.dropdown li:hover > div {
	background: #3B3D3F;
}

.horizontal-menu.dropdown li > div > a {
	background: #2c2d2f linear-gradient(to left, #DB3839 50%, #2c2d2f 50%) repeat scroll 0 0 / 200% 100%;
	border-radius: 2px;
	display: block;
	float: left;
	margin: 2%;
	padding: 8px 10px;
	text-align: center;
	transition: background-position 0.2s ease;
	width: 46%;
}

.horizontal-menu.dropdown li > div > a:hover {
	background-position: 100% 0;
	cursor: pointer;
}

External CSS

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External JavaScript

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