   public static func bottomToOtherViewsTop(_ view1: View, otherView: View, minus: CGFloat) -> NSLayoutConstraint?{
     var c: NSLayoutConstraint?
     constrain(view1, otherView){ view1, otherView in
-      c = view1.bottom == otherView.top
+      c = view1.bottom == otherView.top - minus
       return
     }
     return c

  public static func topToOtherViewsCenterX(_ view1: View, otherView: View, plus: CGFloat) -> NSLayoutConstraint?{
    var c: NSLayoutConstraint?
    constrain(view1, otherView){ view1, otherView in
      c = view1.top == otherView.centerY
      return
    }
    return c

  public static func topToOtherViewsBottom(_ view1: View, otherView: View, plus: CGFloat) -> NSLayoutConstraint?{
    var c: NSLayoutConstraint?
    constrain(view1, otherView){ view1, otherView in
      c = view1.top == otherView.bottom + plus
      return
    }
    return c
