New group box view in SwiftUI

Groupboxs.swift

import SwiftUI

struct GroupBoxs: View {
    @State var progress: CGFloat = 0.3
    var body: some View {
        VStack(spacing: 20) {
            
            //Groupbox arranges view as an vstack so it's safe to assume that has an implicit VStack in defination
            GroupBox(label: Text("Progress"), content: {
                ProgressView(value: progress, total: 1.0)
                Stepper("Progress stepper", value: $progress)
                
            })
            
            //Group box can have label optionally
            GroupBox {
                Slider(value: $progress)
            }
            
        }
        .padding(.all, 20)
    }
}