title: glyphicons bootstrap icon not align with textarea
body: <p>The glyphicons icon is hihger than textarea input.</p>
  
  <pre><code>&lt;div class="form-group"&gt;
  &lt;div class="col-md-8 inputGroupContainer"&gt;
      &lt;label class="label-margin" for="name"&gt;&lt;span class="label-required"&gt;* 
    &lt;/span&gt;Message&lt;/label&gt;
          &lt;div class="input-group"&gt;&lt;span class="input-group-addon"&gt;&lt;i 
     class="glyphicon glyphicon-align-left" &gt;&lt;/i&gt;&lt;/span&gt;
              &lt;textarea class="message" cols="35" id="message" name="message" 
    rows="8"&gt;&lt;/textarea&gt;
          &lt;/div&gt;
      &lt;/div&gt;
    &lt;/div&gt;
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/Swk4C.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Swk4C.png" alt="enter image description here"></a></p>