Hello, Flutter!

main.dart

// ignore_for_file: prefer_const_constructors
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
          appBar: AppBar(
              centerTitle: true,
              title: Text(
                "Hello Flutter",
                style: TextStyle(
                  fontSize: 28,
                ),
              )),
          body: SingleChildScrollView(
            child: Padding(
              padding: const EdgeInsets.all(16),
              child: Column(
                children: [
                  Padding(
                    padding: const EdgeInsets.all(32),
                    child: Image.network(
                      "https://i.ibb.co/nngK6j3/startup.png",
                      width: 80,
                    ),
                  ),
                  TextField(
                    decoration: InputDecoration(
                      labelText: "이메일",
                    ),
                  ),
                  TextField(
                    obscureText: true,
                    decoration: InputDecoration(
                      labelText: "비밀번호",
                    ),
                  ),
                  Container(
                    margin: const EdgeInsets.only(top: 24),
                    width: double.infinity,
                    child: ElevatedButton(
                      onPressed: () {},
                      child: Text("로그인"),
                    ),
                  )
                ],
              ),
            ),
          )),
    );
  }
}