import 'package:flutter/material.dart'; class Home extends StatelessWidget { static const String id = 'home'; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('Sorting game'), ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ Container( child: Column( mainAxisSize: MainAxisSize.min, mainAxisAlignment: MainAxisAlignment.center, children: [ Container( margin: EdgeInsets.all(4), padding: EdgeInsets.all(4), decoration: BoxDecoration( color: Colors.blue, borderRadius: BorderRadius.circular(4), border: Border.all( color: Colors.green, width: 4, ), ), child: TextButton( child: Text( '🎲', textAlign: TextAlign.center, style: TextStyle( fontSize: 50, fontWeight: FontWeight.w600, color: Colors.black, ), ), onPressed: () => print('X'), ), ), ], ), ), ], ), ), ); } }