Spacer in Android Jetpack Compose

package com.geeksforgeeks.demo

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.*
import androidx.compose.material3.*
import androidx.compose.runtime.*
import androidx.compose.ui.*
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.unit.*

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            MaterialTheme {
                SpacerDemonstration()
            }
        }
    }
}

// create a composable function
@Composable
fun SpacerDemonstration(){
    Column(
        Modifier.fillMaxWidth().absolutePadding(10.dp, 100.dp, 10.dp, 0.dp), horizontalAlignment = Alignment.CenterHorizontally) {

        // Creating Button 1
        Button(onClick = { /*TODO*/ },
            colors = ButtonDefaults.buttonColors(containerColor = Color(0XFF0F9D58)),
        ) {
            Text("Button 1", color = Color.White)
        }

        // Adding a Spacer of height 20dp
        Spacer(modifier = Modifier.height(20.dp))

        // Creating Button 2
        Button(onClick = { /*TODO*/ },
            colors = ButtonDefaults.buttonColors(containerColor = Color(0XFF0F9D58)),
        ) {
            Text("Button 2", color = Color.White)
        }

        // Adding a Spacer of height 200dp
        Spacer(modifier = Modifier.height(200.dp))

        // Adding a Text
        Text(text = "Hello Geek!", fontSize = 50.sp)
    }
}