import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      // showSemanticsDebugger: true,
      theme: ThemeData(useMaterial3: true),
      home: const Scaffold(
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              ExpansionTile(
                title: Text('Flutter Forward'),
                children: <Widget>[
                  Column(
                    children: <Widget>[
                      Text('Text'),
                      Text('Text'),
                      Text('Text'),
                      Text('Text'),
                    ],
                  )
                ],
              ),
              SizedBox(height: 20),
              ExpansionTile(
                initiallyExpanded: true,
                title: Text('Flutter Forward'),
                children: <Widget>[
                  Column(
                    children: <Widget>[
                      Text('Text'),
                      Text('Text'),
                      Text('Text'),
                      Text('Text'),
                    ],
                  )
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }
}