title: bootstrap toggler not showing content
body: <p>help me with this , the toggler icon is not showing any content.
  I used bootstrap 5.1 in the code. The toggler icon in the navbar does not show any content when clicked</p>
  <p>'''</p>
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  
  &lt;head&gt;
  &lt;meta charset=&quot;utf-8&quot;&gt;
   &lt;title&gt;TinDog&lt;/title&gt;
   &lt;link rel=&quot;stylesheet&quot; href=&quot;css/styles.css&quot;&gt;
   &lt;link href=&quot;https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css&quot;
   rel=&quot;stylesheet&quot; integrity=&quot;sha384- 
   1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3&quot; crossorigin=&quot;anonymous&quot;&gt;
  &lt;/head&gt;
  
  &lt;body&gt;
  
  
   &lt;nav class=&quot;navbar navbar-expand-lg navbar-dark bg-dark&quot; &gt;
     &lt;div class=&quot;container-fluid&quot;&gt;
       &lt;a class=&quot;navbar-brand &quot;href=&quot;&quot;&gt;tindog&lt;/a&gt;
       &lt;button class=&quot;navbar-toggler&quot; type=&quot;button&quot; data-bs-toggle=&quot;collapse&quot; data-bs- 
      target=&quot;#navbarTogglerDemo02&quot; aria-controls=&quot;navbarTogglerDemo02&quot; aria-expanded=&quot;false&quot; 
      aria-label=&quot;Toggle navigation&quot;&gt;
        &lt;span class=&quot;navbar-toggler-icon&quot;&gt;&lt;/span&gt;
      &lt;/button&gt;
  
      &lt;div class=&quot;collapse navbar-collapse&quot; id=&quot;navbarTogglerDemo02&quot;&gt;
       &lt;ul class=&quot;navbar-nav ms-auto&quot;&gt;
         &lt;li class=&quot;nav-item&quot;&gt;
           &lt;a class=&quot;nav-link&quot;href=&quot;#&quot;&gt;Contact&lt;/a&gt;
        &lt;/li&gt;
        &lt;li class=&quot;nav-item&quot;&gt;
          &lt;a class=&quot;nav-link&quot;href=&quot;#&quot;&gt;Pricing&lt;/a&gt;
        &lt;/li&gt;
        &lt;li class=&quot;nav-item&quot;&gt;
          &lt;a class=&quot;nav-link&quot;href=&quot;#&quot;&gt;Download&lt;/a&gt;
        &lt;/li&gt;
      &lt;/ul&gt;
  
  
    &lt;/div&gt;
    &lt;/div&gt;
  &lt;/nav&gt;
  </code></pre>
  
  
  <p>'''</p>