title: Bootstrap 4 navbar tabs not activating tab content
body: <p>I'm in the process of learning a little bootstrap and I found a tutorial for navbar with 3.3.5 and could get it working fine.</p>
  
  <pre><code>    &lt;ul class="nav nav-pills"&gt;
    &lt;li class="active"&gt;&lt;a data-toggle="tab" href="#superman"&gt;Superman&lt;/a&gt;&lt;/li&gt;
    &lt;li&gt;&lt;a data-toggle="tab" href="#batman"&gt;Batman&lt;/a&gt;&lt;/li&gt;
  
    &lt;!-- Dropdown menu item --&gt;
    &lt;li class="dropdown"&gt;
      &lt;a class="dropdown-toggle" data-toggle="dropdown" href="#"&gt;Flash
      &lt;span class="caret"&gt;&lt;/span&gt;&lt;/a&gt;
      &lt;ul class="dropdown-menu"&gt;
  
        &lt;!-- Disable a tab --&gt;
        &lt;li class="disabled"&gt;&lt;a data-toggle="tab" href="#flash"&gt;The Flash&lt;/a&gt;&lt;/li&gt;
        &lt;li&gt;&lt;a data-toggle="tab" href="#kidflash"&gt;Kid Flash&lt;/a&gt;&lt;/li&gt;
      &lt;/ul&gt;
    &lt;/li&gt;
  &lt;/ul&gt;
  
  &lt;div class="tab-content"&gt;
    &lt;div id="superman" class="tab-pane fade in active"&gt;
      &lt;p&gt;Superman is a fictional superhero appearing in American comic books published by DC Comics. &lt;/p&gt;
    &lt;/div&gt;
    &lt;div id="batman" class="tab-pane fade"&gt;
      &lt;p&gt;Batman is a fictional superhero appearing in American comic books published by DC Comics. &lt;/p&gt;
    &lt;/div&gt;
    &lt;div id="flash" class="tab-pane fade"&gt;
      &lt;p&gt;The Flash is a fictional superhero appearing in American comic books published by DC Comics. &lt;/p&gt;
    &lt;/div&gt;
    &lt;div id="kidflash" class="tab-pane fade"&gt;
      &lt;p&gt;Kid Flash is a fictional superhero appearing in American comic books published by DC Comics. &lt;/p&gt;
    &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>When I realized that 4 was the most recent version I figured it'd be best to learn 4.  I can get the navbar to work properly with 4 but I can find no documentation on how to actually change the content being displayed when the different tabs are pressed.  The code I have so far is below.</p>
  
  <pre><code>&lt;nav class="navbar navbar-expand-lg navbar-light bg-light"&gt;
    &lt;a class="navbar-brand" href="#"&gt;Augma Home&lt;/a&gt;
    &lt;button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" 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="navbarNavAltMarkup"&gt;
      &lt;div class="navbar-nav"&gt;
        &lt;a class="nav-item nav-link active" href="#home"&gt;Home &lt;span class="sr-only"&gt;(current)&lt;/span&gt;&lt;/a&gt;
        &lt;a class="nav-item nav-link" href="#menu"&gt;Menu&lt;/a&gt;
        &lt;a class="nav-item nav-link" href="#colors"&gt;Colors&lt;/a&gt;
        &lt;a class="nav-item nav-link disabled" href="#"&gt;Disabled&lt;/a&gt;
      &lt;/div&gt;
    &lt;/div&gt;
  &lt;/nav&gt;
  </code></pre>
  
  <p>I looking for the equivalent of the tab-content from 3.3.5.  I'm looking for some youtube tutorials now but if anyone has anyone that they feel is particularly good please feel free to share.  Also I apologize if this is a really basic question I'm a backend guy so being unfamiliar with the jargon for this front end stuff has made search for this particular issue rather frustrating.</p>