title: styleClass is not working in PrimeNg Dialog?
body: <p>I am trying to add the styleClass in primeNg but it is not working</p>
  
  <p>Html file</p>
  
  <pre><code>&lt;p-dialog [(header)]="dialogText" [(visible)]="displayDlg" [modal]="true" [responsive]="true" 
    styleClass='pDialog' &gt;
  </code></pre>
  
  <p>CSS File</p>
  
  <pre><code>.pDialog{
  width:700px;
  overflow: visible;
  }
  </code></pre>
  
  <p>Instead I wrote the <code>contentStyle</code> this is working</p>
  
  <pre><code>&lt;p-dialog [(header)]="dialogText" [(visible)]="displayDlg" [modal]="true" [responsive]="true" 
     [contentStyle]="{'width': '700px','overflow':'visible'}"&gt;
  </code></pre>
  
  <p>How to make it in the css file?</p>