title: Angular4 tabs not working using <mat-tab-group>
body: <p>Can't get tabs by using <code>&lt;mat-tab-group&gt;</code></p>
  
  <p>I have installed latest nodejs, angular cli, and angular material
  but i cant get tabs when i run project in browser</p>
  
  <pre><code>@angular/cli: 1.4.5
  node: 8.7.0
  os: linux x64
  @angular/animations: 4.4.5
  @angular/cdk: 2.0.0-beta.12
  @angular/common: 4.4.5
  @angular/compiler: 4.4.5
  @angular/core: 4.4.5
  @angular/forms: 4.4.5
  @angular/http: 4.4.5
  @angular/material: 2.0.0-beta.12
  @angular/platform-browser: 4.4.5
  @angular/platform-browser-dynamic: 4.4.5
  @angular/router: 4.4.5
  @angular/cli: 1.4.5
  @angular/compiler-cli: 4.4.5
  @angular/language-service: 4.4.5
  typescript: 2.3.4
  </code></pre>
  
  <p>Registration component Html</p>
  
  <pre><code>&lt;app-header&gt;
  
  
  &lt;/app-header&gt;
  
  &lt;div class="mainwrap"&gt;
          &lt;div class="heading"&gt; 
          Registration
          &lt;/div&gt;
  
          &lt;mat-tab-group&gt;
              &lt;mat-tab label="Tab 1"&gt;Content 1&lt;/mat-tab&gt;
              &lt;mat-tab label="Tab 2"&gt;Content 2&lt;/mat-tab&gt;
            &lt;/mat-tab-group&gt;
  
  
  &lt;/div&gt;
  </code></pre>
  
  <p>app.module.ts</p>
  
  <pre><code>import { BrowserModule } from '@angular/platform-browser';
  import { NgModule } from '@angular/core';
  import { RouterModule, Routes } from '@angular/router';
  import { AppComponent } from './app.component';
  import { HeaderComponent } from './header/header.component';
  import { RegistrationComponent } from './registration/registration.component';
  import {MatTabsModule} from '@angular/material';
  
  @NgModule({
    declarations: [
      AppComponent,
      HeaderComponent,
      RegistrationComponent
    ],
    imports: [
      BrowserModule,
      MatTabsModule,
      RouterModule.forRoot(
      [
      {
        path: '',
        redirectTo: 'registration',
        pathMatch: 'full'
      },
      {
      path: 'registration',
      component: RegistrationComponent
      }
      ])
    ],
    providers: [],
    bootstrap: [AppComponent]
  })
  export class AppModule { }
  </code></pre>