Container Widget

main.dart

Container(
    color: Colors.cyanAccent,
      child: Container(
             child: Container(
                            width: MediaQuery.of(context).size.width,
                            height:MediaQuery.of(context).size.height,
                            padding: const EdgeInsets.all(15.0),
                            alignment: Alignment.bottomCenter,
                            decoration: BoxDecoration(
                            color: const Color(0xff7c94b6),
                            shape: BoxShape.rectangle,
                            border: Border.all(
                            color: Colors.lightBlueAccent,
                            width: 5.0,
                             ),
                             borderRadius: BorderRadius.all(Radius.circular(20.0)),
                          boxShadow: [BoxShadow(
                            color: Colors.grey,
                            blurRadius: 5.0,
                             ),],
                           
                           gradient: new LinearGradient(
                                               colors: [
                                           Colors.indigo[800],
                                            Colors.indigo[700],
                                             Colors.indigo[600],
                                             Colors.indigo[400],
                                           ],
                                           begin: Alignment.topRight,
                                           end: Alignment.bottomLeft,
                                           stops: [0.1, 0.5, 0.7, 0.9],


        ),
                          
                         ),
                      )
      )              
    );
    
  }
}