CODE EXAMPLE FOR CSS

i need show the message for when we are clicking routing page in anularjs

.component('app', {
  template:
    '<nav>
' +
    '  <a>Crisis Center</a>
' +
    '  <a ng-link="['Heroes']">Heroes</a>
' +
    '</nav>
' +
    '<ng-outlet></ng-outlet>
',
  $routeConfig: [
    {path: '/heroes/...', name: 'Heroes', component: 'heroes'},
  ]
});