<!DOCTYPE html>
<html>

  <head>
    <title>angular2 playground</title>
    <link rel="stylesheet" href="style.css" />
    
    <script src="https://cdnjs.cloudflare.com/ajax/libs/polymer/0.5.6/polymer.js"></script>
    <script src="https://code.angularjs.org/2.0.0-beta.0/angular2-polyfills.js"></script>
    <script src="https://code.angularjs.org/tools/system.js"></script>
    <script src="https://code.angularjs.org/tools/typescript.js"></script>
    <script src="config.js"></script>
    <script src="https://code.angularjs.org/2.0.0-beta.0/Rx.js"></script>
    <script src="https://code.angularjs.org/2.0.0-beta.0/angular2.min.js"></script>
    <script src="https://code.angularjs.org/2.0.0-beta.0/http.min.js"></script>
    <script>
    System.import('app')
      .catch(console.error.bind(console));
  </script>
  </head>

  <body>
    <my-app>
    loading...
  </my-app>

  </body>

</html>
/* Styles go here */

span{
  color:blue !important;
}

.red-span{
  color: red;
}
### Angular2 Starter Plunker - Typescript - Beta 0

A simple plunker demonstrating Angular2 usage:
- Uses SystemJS + TypeScript to compile on the fly
- Includes binding, directives, http, pipes, and DI usage.
System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  //map tells the System loader where to look for things
  map: {
    app: "./src"
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    }
  }
});
//main entry point
import {bootstrap} from 'angular2/platform/browser';
import {App} from './app';

bootstrap(App, [])
  .catch(err => console.error(err));
//our root app component
import {Component} from 'angular2/core'
import {TodoItemComponent} from './todoitem.component';

@Component({
  selector: 'my-app',
  providers: [],
  template: `
    <div>
      <h2>Hello {{name}}</h2>
        <todo-item caption="Buy milk"></todo-item>
        <div><span>Some Content</span></div>
        <div><span class="red-span">Some Content with CSS class red-span</span></div>
    </div> 
  `,
  directives: [TodoItemComponent]
})
export class App {
  constructor() {
    this.name = 'Angular2'
  }
}
import {Component, Input, ViewEncapsulation} from 'angular2/core';

@Component({
  selector: 'todo-item',
  templateUrl: 'templates/todoitem.html',
  styleUrls: ['styles/todoitem.css']
  encapsulation: ViewEncapsulation.Native
})
export class TodoItemComponent{
  @Input() caption: string;
}
.todo-item-caption{
  color:purple;
}
<span class="todo-item-caption">{{caption}}</span>