londonappbrewery-mi-card-challenge.dart

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        backgroundColor: Colors.black,
        body: SafeArea(
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: <Widget>[
              Expanded(
                child: Container(
                  height: 100.0,
                  width: 100.0,
                  color: Colors.red,
                  child: Text('Container 1'),
                ),
              ),
              Expanded(
                flex: 2,
                child: Container(
                  height: 100.0,
                  color: Colors.teal,
                  child: Column(
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: <Widget>[
                      Container(
                        height: 100.0,
                        width: 100.0,
                        color: Colors.yellow,
                      ),
                      Container(
                        height: 100.0,
                        width: 100.0,
                        color: Colors.lightGreen,
                      ),
                    ],
                  ),
                ),
              ),
              Expanded(
                child: Container(
                  width: 100.0,
                  height: 100.0,
                  color: Colors.blue,
                  child: Text('Container 3'),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}