title: How to decrease the size of input-group-addon Bootstrap
body: <p><a href="https://i.stack.imgur.com/V7ywZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/V7ywZ.png" alt="enter image description here"></a></p>
  
  <pre><code>   &lt;div class="time input-group"&gt;
            &lt;span class="input-group-addon" id="basic-addon4"&gt;Start Time
            &lt;/span&gt;
          &lt;timepicker [(ngModel)]="mytime" required&gt;&lt;/timepicker&gt;&lt;/div&gt;
  </code></pre>
  
  <p>How to decrease the height of input-group-addon icon?
  It must be equal to the size of input timer box.</p>
  
  <p>Thanks in advance.</p>