title: Antd Alert message, description and icon not showing up in react app
body: <p>I have a react app that uses antd ui components. I am trying to use the Alert component. However, I am not able to get the alert component to display the message or icon. The only thing the alert is displaying is the closable icon and the action elements.</p>
  <pre class="lang-js prettyprint-override"><code>
      &lt;Alert message={&quot;Success&quot;}
             description={&quot;Success description&quot;}
             type=&quot;success&quot;
             showIcon
             closable={true}
             action={
                 &lt;Button size=&quot;small&quot; type=&quot;text&quot;&gt;
                     OK
                 &lt;/Button&gt;
             }
      /&gt;
  
  </code></pre>
  <p>The above Alert component only shows the <strong>OK</strong> button that is defined for the action property and the closeable icon.</p>