How to disable View (css) Encapsulation in Angular

A component’s styles can be encapsulated within the component’s host element so that they don’t affect the rest of the application.

import {ViewEncapsulation} from '@angular/core';

@Component({
  moduleId: module.id,
  selector: 'my-zippy',
  templateUrl: 'my-zippy.component.html',
  styles: [`
    .zippy {
      background: green;
    }
  `],
  encapsulation: ViewEncapsulation.None
})
class ZippyComponent {
  @Input() title: string;
}

References
https://angular.io/api/core/ViewEncapsulation
https://blog.thoughtram.io/angular/2015/06/29/shadow-dom-strategies-in-angular2.html