Prototype-main-nav

      
        
      

  
 <nav class="o-prototype-main-nav ">
   <a href="#" class="o-prototype-main-nav__toggle js-toggle-menu"><span>toggle menu</span></a>
    <ul class="o-prototype-main-nav__menu">
		
			<li class="o-prototype-main-nav__item o-prototype-main-nav__item--has-sub ">
				<a href="#">item 1</a>
			</li>
		
			<li class="o-prototype-main-nav__item ">
				<a href="#">item 2</a>
			</li>
		
			<li class="o-prototype-main-nav__item ">
				<a href="#">item 3</a>
			</li>
		
			<li class="o-prototype-main-nav__item ">
				<a href="#">item 4</a>
			</li>
		
	</ul>
</nav>