mega menu ada example

1<nav aria-label="main">
2  <ul class="nav-items">
3    <li class="main-nav-level">
4      <a href="/shop">Shop</a> 
5      <button type="button" aria-controls="shop-submenu" aria-expanded="false" aria-label="View Shop Menu">
6        <span class="fas fa-caret-down" aria-hidden="true"></span>
7       </button>
8       <ul id="shop-submenu" class="submenu">
9         <li><a href="/shop/womens">Womens</a></li>
10         <li><a href="/shop/mens">Mens</a></li>
11       </ul>
12    </li>
13    ...
14  </ul>
15</nav>
16