container_shadow_with_flutter_shine.dart

FlutterShine(
    builder: (BuildContext context, ShineShadow shineShadow) {
        return Center(
            child: Container(
                    width: 300,
                    height: 300,
                    decoration: BoxDecoration(
                        color: Colors.white, boxShadow: shineShadow.boxShadows,
                    ),
             ),
        );
    },
),