Container custom

container.dart

Container(
                decoration: BoxDecoration(
                  color: Color(0xffD99AFD),
                  borderRadius: BorderRadius.circular(10), 
                  boxShadow: <BoxShadow>[
                    BoxShadow(
                        blurRadius: 30,
                        color: Color(0xffE9C3FF),
                        offset: Offset(0, 6))
                  ],
                ),
                height: 60,
                width: 350,
                child: Center(
                  child: Text(
                    'Sign In',
                    style: TextStyle(
                        fontSize: 20,
                        fontWeight: FontWeight.w700,
                        color: Colors.white),
                  ),
                ),
              )