//FileName: question.dart
import 'package:flutter/material.dart';

class Question extends StatelessWidget {
  /*
  * final keywords tells dart that this value will never change after its
  * initialization here int he constructor
   */
  final String questionText;

  /* Lets have a constructor to initialize this widget class questionText
  *  Now the first positional argument passed to this constructor will be stored in
  *  questionText variable
   */
  Question(this.questionText);

  @override
  Widget build(BuildContext context) {
    return Container(
      width: double.infinity, //double.infinity means occupy the whole screen (width in this case)
      margin: EdgeInsets.all(10), //apply margin of 10 pts to all 4 sides
      child: Text(
        questionText,
        style: TextStyle(fontSize: 26),
        textAlign: TextAlign.center,
      ), //Text
    ); //Container()
  } //build
} //Question

Happy Coding!