<div class="row hide-for-small" id="mainNav">
		<ul class="nav">
		<li class="large-2 columns nav extended" id="behaviour"><a href="#">Pupil <br />Behaviour</a>  
        <ul>
			      <li><a href="about/me">Me</a></li>
			      <li><a href="about/contaxt">Contact</a></li>
            <li><a href="about/contaxt">Contact</a></li>
             <li><a href="about/contaxt">Contact</a></li>
	    	</ul>
    	</li>
		<li class="large-2 columns nav extended" id="workload"><a href="#">Managing <br />Workload</a>
      <ul>
			      <li><a href="about/me">Me</a></li>
			      <li><a href="about/contaxt">Contact</a></li>
            <li><a href="about/contaxt">Contact</a></li>
             <li><a href="about/contaxt">Contact</a></li>
	    </ul>     
     </li>
		<li class="large-2 columns nav" id="worklife"><a href="#">Worklife <br />Balance</a></li>
		<li class="large-2 columns nav" id="relationships"><a href="#">Relationships <br />at Work</a></li>
		<li class="large-2 columns nav" id="events"><a href="#">Life <br />Events</a></dliiv>
		<li class="large-2 columns nav" id="evaluation"><a href="#">Self <br />Evaluation</a></li>
	</ul>
	</div>

#mainNav ul.nav {
  height: 40px; width: 1000px;
  margin: 10px auto;
}
#mainNav ul {
  list-style-type: none;
}
#mainNav li {
	height: 40px; width: 120px;
	float: left;
  clear: none;
  text-align: left;
}
#mainNav a {
  height: inherit; width: inherit;
  padding: 12px;
  display: block;
  border-left: 1px #fff solid;
  background: #9cf; color: white;
	text-decoration: none;
}
#mainNav a:hover {
	background: red;
}
#mainNav li.extended ul  {
  /*overflow: hidden; uncomment to restrict extended li to the width of parent element*/
}
#mainNav li.extended li {
  position: relative;
  margin-left: 10px; /*controls sideways shimmy */
	clear: both;
 	overflow: hidden;
  height: 0;
  width: 300px;
  
  -webkit-transition: all 0.5s;
}
#mainNav li.extended:hover li {
	margin-left: 0;
 	height: auto;
}
#mainNav li.extended li a {
  border-top: 1px #fff solid;
}

#mainNav ul ul {padding:0; margin:0}