My card Flutter

main.dart

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        backgroundColor: Colors.teal,
        body: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
        Text(
          'Alin',
          style: TextStyle(
            fontSize: 40.0,
            color: Colors.white,
            fontWeight: FontWeight.bold,
          ),
        ),
        FlatButton(
          color: Colors.red,
          onPressed: () {
            /*do something*/
          },
          child: Text(
            "Press me",
          ),
        ),
      ]),
      ),
    );
  }

main.js

export default function App() {
  return (
    <div className="App" style={{backgroundColor: "lightblue"}}>
      <p style={{
        color: "white", 
        fontSize: 40.0, 
        fontWeight: "bold"}}>Alin</p>
    <button style={{
        color: "red"}}
        onClick={doSomething}>Press me</button>
    </div>
  );
}