import 'package:flutter/cupertino.dart'; class Space extends StatelessWidget { final double width; final double height; const Space(this.width, this.height, {Key? key}) : super(key: key); @override Widget build(BuildContext context) => SizedBox(width: width, height: height); } class VSpace extends StatelessWidget { final double size; const VSpace(this.size, {Key? key}) : super(key: key); @override Widget build(BuildContext context) => Space(0, size); } class HSpace extends StatelessWidget { final double size; const HSpace(this.size, {Key? key}) : super(key: key); @override Widget build(BuildContext context) => Space(size, 0); }