UIKIT Responsive menu

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/uikit/2.23.0/js/uikit.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/uikit/2.23.0/css/uikit.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/uikit/2.23.0/js/components/accordion.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/uikit/2.23.0/css/components/accordion.css">
<div class="uk-accordion" data-uk-accordion="{showfirst: false}">

  <nav class="uk-navbar">
    <a href="#" class="uk-navbar-toggle uk-accordion-title"></a>
  </nav>

  <div class="uk-navbar uk-accordion-content">
    <ul class="uk-nav">
      <li><a href="#">Item</a></li>
      <li><a href="#">Another item</a></li>
    </ul>
  </div>
</div>

<div>content</div>

CSS

.uk-accordion-title {
  margin-bottom: 0
}