How To Use Overflow Box With Padding Using Flutter App

import 'dart:math' as math;
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: MyHomePage(),
    );
  }
}
class MyHomePage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => MyHomePageState();
}

class MyHomePageState extends State<MyHomePage> {
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        child: Container(
          color: Colors.blue.shade300,
          child: Padding(
            padding: const EdgeInsets.all(20),
            child: Column(
              children: [
                Expanded(
                  child: Container(
                    color: Colors.white,
                    child: Center(
                      child: Text('Padding on this one.'),
                    ),
                  ),
                ),
                SizedBox(height: 20),
                Expanded(
                  child: OverflowBox(
                    maxWidth: MediaQuery
                        .of(context)
                        .size
                        .width,
                    child: Container(
                      color: Colors.pink.shade300,
                      child: Center(
                        child: Text('No padding on this one!'),
                      ),
                    ),
                  ),
                ),
                SizedBox(height: 20),
                Expanded(
                  child: Container(
                    color: Colors.lightGreen.shade300,
                    child: Center(
                      child: Text('Look, padding is back!'),
                    ),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}