Hi@akhtar,
Container means a parent widget that contains a child widget and manages it, such as width, height, background, and so on. You can create a container widget in your app using the below code.
Container(
alignment: Alignment.center,
width: 200,
height: 200,
color: Colors.red,
);
It will give you the below output.
To know more, join our Flutter Certification Course today.