title: How to add fa fa icons in text field, yii framework?
body: <p>Here's my code where I want to place fa fa icon in that.</p>
  
  <p>Whenever I place <code>&lt;i class=fa fa-user&gt;&lt;/i&gt;</code> it not display anything and it runs without error's.</p>
  
  <pre><code>&lt;?php $form = ActiveForm::begin(['id' =&gt; 'login-form']); ?&gt;
  &lt;?= $form-&gt;field($model, 'username') ?&gt;
  
  &lt;?= $form-&gt;field($model, 'password')-&gt;passwordInput() ?&gt;
  &lt;?= $form-&gt;field($model, 'rememberMe')-&gt;checkbox() ?&gt;
  </code></pre>