My second container is taking all the space.How to avoid that - flutter

Question

The second Container which is in the red color is taking all the remaining space. How to avoid that. I want my second container to take the minimum space.
Container(
height: 600,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.all(
Radius.circular(60),
),
),
child: Padding(
padding: const EdgeInsets.only(top: 80.0, right: 50, left: 50),
child: Container(
decoration: BoxDecoration(
color: Colors.red,
borderRadius: BorderRadius.all(
Radius.circular(20),
),
),
child: Column(
children: [
TextFormField(
decoration: const InputDecoration(
border: UnderlineInputBorder(),
labelText: "Email or Phone Number"),
),
SizedBox(
height: 20,
),
TextField(
decoration:
new InputDecoration.collapsed(hintText: 'PassWord'),
)
],
),
),
),
),[![][1]][1]

Answer 1

Remove parent Container height and set Column <mainAxisSize: MainAxisSize.min,>.
It is taking full height because of Container height and the default behavior of Column.
And to improve UI, use padding on Container<padding:x,child Column>
Container(
// height: 600,
decoration: const BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.all(
Radius.circular(60),
),
),
child: Padding(
padding: const EdgeInsets.only(top: 80.0, right: 50, left: 50),
child: Container(
padding: const EdgeInsets.all(40), //here padding
decoration: const BoxDecoration(
color: Colors.red,
borderRadius: BorderRadius.all(
Radius.circular(20),
),
),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
TextFormField(
decoration: const InputDecoration(
border: UnderlineInputBorder(),
labelText: "Email or Phone Number"),
),
const SizedBox(
height: 20,
),
const TextField(
decoration: InputDecoration.collapsed(hintText: 'PassWord'),
),
],
),
),
),
),

Answer 2

Try below code hope its helpful to you. Just remove your container extra/large height
Container(
height: 180,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.all(
Radius.circular(
60,
),
),
),
child: Padding(
padding: const EdgeInsets.only(top: 80.0, right: 50, left: 50),
child: Container(
decoration: BoxDecoration(
color: Colors.red,
borderRadius: BorderRadius.all(
Radius.circular(20),
),
),
child: Column(
children: [
TextFormField(
decoration: const InputDecoration(
border: UnderlineInputBorder(),
labelText: "Email or Phone Number",
),
),
SizedBox(
height: 20,
),
TextField(
decoration: InputDecoration.collapsed(
hintText: 'PassWord',
),
)
],
),
),
),
),
Your result screen->