How to add class attribute in angular 2 component typescript file?
<p>How to add class attribute in angular 2 component typescript file ?</p>

<p>Below is my footer component code, i want to add <strong>footer</strong> class to it.</p>

<p><strong>footer.component.ts</strong></p>

<pre><code>import { Component } from '@angular/core';
import { Footer }    from './footer';
@Component({
  moduleId: module.id,
  selector: 'footer',
  templateUrl: 'footer.component.html'
})
export class FooterComponent {
constructor() {
    this.title = 'Footer Content';
    this.css_class = 'navbar-fixed-bottom';
  }
}
</code></pre>

<p><strong>footer.ts</strong></p>

<pre><code>export class Footer {
  constructor(
    public title: string
  ) {  }
}
</code></pre>

<p>Please suggest.</p>