learn_flutter_basic.dart

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(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Container(
          // grey box
          width: 320,
          height: 240,
          color: Colors.grey[300],
          child: Center(
            child: Container(
              // red box
              decoration: BoxDecoration(
                color: Colors.red[400],
              ),
              padding: const EdgeInsets.all(16),
              child: Text(
                'Hey, I am learning Flutter.',
                style: bold24Roboto,
                overflow: TextOverflow.ellipsis,
                maxLines: 1,
              ),
            ),
          ),
        ),
      ),
    );
  }
}

TextStyle bold24Roboto = const TextStyle(
  color: Colors.white,
  fontSize: 24,
  fontWeight: FontWeight.bold,
);