title: How to use add class property in angular2
body: <p>I have issue for my angularjs 2 code.I want to apply this css through angular2.</p>
  
  <p>Here, my jquery code :</p>
  
  <p><a href="https://i.stack.imgur.com/1e4U9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1e4U9.png" alt="Jquery code"></a></p>
  
  <p>Show how can I use this code in angular 2. how should I use the property add class in angular 2.</p>
  
  <p>Please help me.</p>