React Hello World Example with ES6+JSX

A basic Hello World widget with in browser JSX transformed + ES6 support

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/0.13.1/JSXTransformer.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/0.13.1/react-with-addons.js"></script>
<script src="https://facebook.github.io/react/js/jsfiddle-integration.js"></script>
<div id="container">
    <!-- This element's contents will be replaced with your component. -->
</div>

CSS

.widget {
    width: 202px;
    margin:100px auto;
//    border:1px solid black;
    padding:20px;
}
.name {
    color: red;
}
.default-label {
    border: 1px solid black;
    padding: 10px;
    margin-bottom: 10px;
    width:180px;
}

.green-label {
    border: 1px solid green;
    padding: 10px;
    margin-bottom: 10px;
    width: 180px;
}

.default-input {
    border: 1px solid #eaeaea;
    padding: 10px;
    width:180px;
}

.important-input {
    border: 2px solid red;
    width:180px;
}

img.center {
    width: 100px;
    height: 100px;
    display: block;
    margin: 15px auto;    
}

JavaScript 1.7

class App extends React.Component {
  constructor(props) {
    super(props)
    
    this.state = {renderNeed: false}
    this.addNeed = this.addNeed.bind(this)
  }
  
  addNeed(e) {
    e.preventDefault()
    this.setState({renderNeed: true})
  }
  
  render() {
    const passNeed = (<Need/>);
    return (
      <div>
        <a href="#" className="add" onClick = {this.addNeed}>add</a>
        {this.state.renderNeed ? passNeed : null}
      </div>
    )
  }
}

class Need extends React.Component {
  constructor(props) {
    super(props)
  }
  
  render() {
    return <div>Need</div>
  }
}

React.render(<App />, document.getElementById('container'));