JSFiddle - React, Tailwind, and code Playground

HTML

<div class="nine columns bottom main-nav">
			<nav>
			<ul>
        <li><a href="/sommer-2013">Sommer 2013</a>
          <ul>
            <li><a href="/sommer-2013/vinter-2012">Vinter 2012</a></li>
          </ul>
        </li>
        <li><a href="/webshop.html">WEBSHOP</a></li>
        <li><a href="/company.html">COMPANY</a></li>
        <li><a href="/stores.html">STORES</a></li>
        </ul>
			</nav>
		</div>

CSS

.nine.columns {
	position:relative;
  margin-top: 30px;
}

nav{
	color: #a8a9ad;
	font-family: "Quicksand_Light", Verdana, Arial;
	font-size: 14px;
	/*display: table;*/
	width: 100%;
  position:relative;
}

nav>ul{
	list-style:list-item;
	margin-bottom: 0px;
	z-index:5;

	width: 100%;
  position:relative;
	
}
nav>ul>li{
  /*display: table-cell;*/
  width:25%;
  text-align: center;  
 	position:relative;
  float:left;
}
nav>ul>li:nth-child(2n){ background:#DDD; }
nav>ul>li:nth-child(2n+1){ background:#BBB; }







nav ul li ul{
	position: absolute;
	margin-left: 0px;
	margin-top: 0;
	display: none;
	text-align: center;
	font-size: 14px;
	color: white;
	width: 100%;
	background: #a8a9ad;
	
}

nav ul li ul li{
	display: list-item;
	margin: 0 0 0 0;
	line-height: 28px;
	height: auto;
	padding: 0;
	border-bottom: 1px solid white;
	text-transform: none;
}


nav ul li:hover ul {
	display: block;
}