child: Container(

11

margin: const EdgeInsets.symmetric(vertical: 10),

12

height: animation.value,

13

width: animation.value,

14

child: const FlutterLogo(),

25

+
                  child: AnimatedBuilder(

26

+
                    animation: animation,

27

+
                    builder: (context, child) {

28

+
                      return SizedBox(

29

+
                        height: animation.value,

30

+
                        width: animation.value,

31