(me learning SwiftUI layout) https://twitter.com/steipete/status/1363151782428479490?s=21

LayoutPlayground.swift

//: A Cocoa based Playground to present user interface

import SwiftUI

struct ContentView: View {
    var body: some View {
        HStack {
            Text("Highlight :")
                .background(Color.green)
                .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topTrailing)
            .background(Color.yellow)

            VStack(alignment: .leading) {
                Text("Checkbox 111")
                Text("Checkbox 2")
            }
            .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading)
            .background(Color.red)
        }
        .frame(width: 400, height: 200)
    }
}

struct ContentView_Preview: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}