title: Bootstrap dropdown in 4.0.0 BETA
body: <p>I have a problem with the new version of bootstrap (4.0.0 BETA), I want to use navbar dropdown with the new version but it doesn't work. I try the example in the documentation but it doesn't work, any one have an idea? </p>
  
  <p>This is my code :</p>
  
  <pre><code>&lt;nav class="navbar navbar-expand-lg navbar-light bg-light"&gt;
      &lt;a class="navbar-brand" href="#"&gt;Navbar&lt;/a&gt;
      &lt;button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation"&gt;
          &lt;span class="navbar-toggler-icon"&gt;&lt;/span&gt;
      &lt;/button&gt;
      &lt;div class="collapse navbar-collapse" id="navbarNavDropdown"&gt;
          &lt;ul class="navbar-nav"&gt;
              &lt;li class="nav-item active"&gt;
                  &lt;a class="nav-link" href="#"&gt;Home &lt;span class="sr-only"&gt;(current)        &lt;/span&gt;&lt;/a&gt;
              &lt;/li&gt;
              &lt;li class="nav-item"&gt;
                  &lt;a class="nav-link" href="#"&gt;Features&lt;/a&gt;
              &lt;/li&gt;
              &lt;li class="nav-item"&gt;
                  &lt;a class="nav-link" href="#"&gt;Pricing&lt;/a&gt;
              &lt;/li&gt;
              &lt;li class="nav-item dropdown"&gt;
                  &lt;a class="nav-link dropdown-toggle" href="http://example.com" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"&gt;
            Dropdown link
          &lt;/a&gt;
                  &lt;div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink"&gt;
                      &lt;a class="dropdown-item" href="#"&gt;Action&lt;/a&gt;
                      &lt;a class="dropdown-item" href="#"&gt;Another action&lt;/a&gt;
                      &lt;a class="dropdown-item" href="#"&gt;Something else here&lt;/a&gt;
                  &lt;/div&gt;
              &lt;/li&gt;
          &lt;/ul&gt;
      &lt;/div&gt;
  &lt;/nav&gt;
  </code></pre>