title: PrimeNG Multi-select show strange fomat
body: <p>PrimeNG p-multiselect show strange.</p>
  
  <p><a href="https://i.stack.imgur.com/PHzh7.png" rel="nofollow noreferrer">enter image description here</a></p>
  
  <p>I have created a new project, and put all dependencies from the example <a href="https://stackblitz.com/edit/github-cfjspw?file=src%2Findex.html" rel="nofollow noreferrer">https://stackblitz.com/edit/github-cfjspw?file=src%2Findex.html</a></p>
  
  <p>practically all code from example above, except the includes stylesheet css on index.html because it was showing error of Mime... (And I tried to solved it...)</p>