Angular 2.x Material fixed problem?

<!DOCTYPE html>
<html>
  <head>
    <title>Angular 2 Material Plunker</title>
    
    <!-- Load common libraries -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/typescript/2.1.1/typescript.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/core.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/zone.js/0.7.2/zone.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.41/system.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/hammer.js/2.0.8/hammer.min.js"></script>
    
    <!-- Configure SystemJS -->
    <script src="systemjs.config.js"></script>

    <script>
      System
        .import('main.ts')
        .catch(console.error.bind(console));
    </script>
    
    <!-- Load the Angular Material 2 stylesheet -->
    <link href="https://rawgit.com/angular/material2-builds/master/core/theming/prebuilt/indigo-pink.css" rel="stylesheet">
    <style>body { font-family: Roboto, Arial, sans-serif; }</style>

  </head>

  <body>
    <material-app>Loading the Angular 2 Material App...</material-app>
  </body>

</html>

<!--
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
-->


<md-toolbar color="primary" style="position:fixed;z-index:10">
  Angular Material 2 App
</md-toolbar>


<md-sidenav-container >

  <div style="margin-top:150px;height: 2700px;width :100%; background-color:yellow"></div>

</md-sidenav-container>

import {Component} from '@angular/core';
import {Http} from '@angular/http'
import {bootstrap} from '@angular/platform-browser-dynamic';

@Component({
  selector: 'material-app',
  templateUrl: 'app.component.html'
})
export class AppComponent {
  
  private version: any;
  
  constructor(http: Http) {
    // Display the currently used Material 2 version.
    this.version = http
      .get('https://api.github.com/repos/angular/material2-builds/commits/HEAD')
      .map(res => res.json())
  }
  
}

/*
 Copyright 2016 Google Inc. All Rights Reserved.
 Use of this source code is governed by an MIT-style license that
 can be found in the LICENSE file at http://angular.io/license
 */

import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {BrowserModule} from '@angular/platform-browser';
import {NgModule} from '@angular/core';
import {CommonModule} from '@angular/common';
import {AppComponent} from './app.component';
import {MaterialModule} from '@angular/material';

@NgModule({

  imports: [
    BrowserModule,
    CommonModule,
    MaterialModule.forRoot(),
  ],

  declarations: [AppComponent],
  bootstrap: [AppComponent],
  providers: []
})
export class PlunkerAppModule {}

platformBrowserDynamic().bootstrapModule(PlunkerAppModule);

/*
 Copyright 2016 Google Inc. All Rights Reserved.
 Use of this source code is governed by an MIT-style license that
 can be found in the LICENSE file at http://angular.io/license
 */

/** Add Transpiler for Typescript */
System.config({
  transpiler: 'typescript',
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  packages: {
    '.': {
      defaultExtension: 'ts'
    },
    'vendor': {
      defaultExtension: 'js'
    }
  }
});

System.config({
  map: {
    'main': 'main.js',
    
    // Angular specific mappings.
    '@angular/core': 'https://unpkg.com/@angular/core/bundles/core.umd.js',
    '@angular/common': 'https://unpkg.com/@angular/common/bundles/common.umd.js',
    '@angular/compiler': 'https://unpkg.com/@angular/compiler/bundles/compiler.umd.js',
    '@angular/http': 'https://unpkg.com/@angular/http/bundles/http.umd.js',
    '@angular/forms': 'https://unpkg.com/@angular/forms/bundles/forms.umd.js',
    '@angular/router': 'https://unpkg.com/@angular/router/bundles/router.umd.js',
    '@angular/platform-browser': 'https://unpkg.com/@angular/platform-browser/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'https://unpkg.com/@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
    '@angular/material': 'https://rawgit.com/angular/material2-builds/master/bundles/material.umd.js',
    
    // Rxjs mapping
    'rxjs': 'https://unpkg.com/rxjs',
  },
  packages: {
    // Thirdparty barrels.
    'rxjs': { main: 'index' },
  }
});

/*
 Copyright 2016 Google Inc. All Rights Reserved.
 Use of this source code is governed by an MIT-style license that
 can be found in the LICENSE file at http://angular.io/license
 */