struct ContentView: View {
   var body: some View {
      HStack(alignment: .center) {
         Image("signbus")
            .alignmentGuide(VerticalAlignment.center, computeValue: { dimension in
               return dimension[VerticalAlignment.center] + 18
            })
         Image("signplane")
         Image("signphone")
      }.border(Color.blue, width: 2)
   }
}