Contruct a navigation structure.

.nav {
	  li {
	    a {
		  text-decoration: none;
	      color: @menu-font-color;
	      &:hover {
			color:@menu-hover-font-color;
			background-color:@menu-hover-background-color;
	      }

	      width:100%;
	      display: block;
	      padding: 10px 0 10px 10px;
	      border: 1px solid @menu-border-color;
	      margin-top: -1px;// prevent double border	      
		}
		&.active {
		 a {
		   color:@menu-active-font-color;
		   background-color:@menu-active-background-color;
		   }
	    }
	    &:first-child a {
	      border-radius: 15px 15px 0 0; 
	    }
		&:last-child a{
		  border-radius: 0 0 15px 15px;
		}
	    
	  }
	  
	  list-style: none outside none;
	  padding:0;
	}