Unkogrotnane pudełko trzepotanie
// this box can give whatever size you want despite the size of the screen or
// it's parent's size.... but will give you overflow error if any...
UnconstrainedBox(
child: Container(color: red, width: 40, height: 50),
)
// if you don't want any overflow error then prefer using 'overflowbox' instead.
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