Container(
                    height: 200.0,
                    width: 200.0,
                    decoration: const BoxDecoration(
                      color: Color(0xFFffffff),
                      boxShadow: [
                        BoxShadow(
                          color: Colors.grey,
                          blurRadius: 15.0, // soften the shadow
                          spreadRadius: 5.0, //extend the shadow
                          offset: Offset(
                            5.0, // Move to right 5  horizontally
                            5.0, // Move to bottom 5 Vertically
                          ),
                        )
                      ],
                    ),
                    child: const Text("Hello world"),
                  ),