import 'package:flutter/material.dart';

//  Container()

void main() {
  runApp(
    MaterialApp(
      title: 'Material App',
      home: Scaffold(
        appBar: AppBar(title: Text('AppBar')),
        body: Container(
          width: 200,
          height: 300,
          color: Colors.red,
          alignment: Alignment.topLeft,
          padding: EdgeInsets.all(10),
          margin: EdgeInsets.all(20),
          child: Text(
            'Container...',
            style: TextStyle(color: Colors.black, fontSize: 20),
          ),
        ),
      ),
    ),
  );
}