title: Bootstrap button group justified not working
body: <p>I have the following code:</p>
  
  <pre><code>&lt;div class="btn-group btn-group-justified"&gt;
      &lt;a class="btn btn-success" href="{% url 'interface:data' user_id 24 %}"&gt; 24h &lt;/a&gt;
      &lt;a class="btn btn-success" href="{% url 'interface:data' user_id 12 %}"&gt; 12h &lt;/a&gt;
      &lt;a class="btn btn-success" href="{% url 'interface:data' user_id 4 %}"&gt; 4h &lt;/a&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I get the following result: <a href="https://i.stack.imgur.com/TB4oy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TB4oy.png" alt="enter image description here"></a></p>
  
  <p>Why I don't get this result?
  <a href="https://i.stack.imgur.com/0ocIR.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0ocIR.png" alt="enter image description here"></a></p>