SwiftUI content gets cut off on smaller iPhone screens

I'm new to SwiftUI, so I'm following a tutorial to get familiar with it. However, my app's content is getting cut off on smaller screens (both vertically and horizontally). How can I prevent this from happening?

Here's my code:

EDIT: I have added borders around my images and resized the images as suggested in your comments and answers, but as you can see, the images don't appear to be taking up any more space than they're supposed to.

struct ContentView: View {
  var body: some View {
    ZStack {
      Image("background").ignoresSafeArea(.all)
      VStack {
        Spacer()
        Image("logo")
          .resizable()
          .aspectRatio(contentMode: .fit)
          .frame(width: 100)
          .border(Color.black)
        Spacer()
        HStack {
          Spacer()
          Image("card3").border(Color.black, width: 3)
          Spacer()
          Image("card4").border(Color.black, width: 3)
          Spacer()
        }
        Spacer()
        Image("dealbutton")
          .resizable()
          .aspectRatio(contentMode: .fit)
          .frame(width: 100)
          .border(Color.black)
        Spacer()
        HStack {
          Spacer()
          VStack {
            Text("Player").padding(.bottom, 10)
            Text("0").font(.largeTitle)
          }
          Spacer()
          VStack {
            Text("CPU").padding(.bottom, 10)
            Text("0").font(.largeTitle)
          }
          Spacer()
        }
        .foregroundColor(.white)
        Spacer()
      }
    }
  }
}

And here's what the preview looks like on an iPod touch:

Try making Image("background") resizable or set it as the .background(:) of your ZStack. Currently the background image isn’t resizable and is larger than the screen, so it shows at its native size and stretches its parent ZStack beyond the bounds of the screen. Since your content is in that same ZStack, it also extends beyond the bounds of the screen