Flutter 如何增加容器高度

我想要一个看起来像这样的东西，里面只有一个月

现在，我有一些看起来像这样的东西，请查看月份部分.

我无法做到这一点，无法增加容器高度.

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:plates/Helpers/constant.dart';
import 'package:plates/pages/ChartScreen/bloc/chart_screen_bloc.dart';

class MonthButton extends StatefulWidget {
  final String month;
  final bool isSelected;
  final VoidCallback onSelect;

  MonthButton(
      {required this.month, required this.isSelected, required this.onSelect});

  @override
  State<MonthButton> createState() => _MonthButtonState();
}

class _MonthButtonState extends State<MonthButton> {
  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
       //some code
      },
      child: Container(
        width: 100, // Adjust the width according to your requirement
        margin: const EdgeInsets.all(8.0),
        decoration: BoxDecoration(
          borderRadius: BorderRadius.circular(8.0),
          border: Border.all(
            color: widget.isSelected
                ? Colors.blueAccent
                : Colors.black, // Apply border color based on selection
          ),
        ),
        child: Center(
          child: Text(
            widget.month,
            style: const TextStyle(fontSize: 18),
          ),
        ),
      ),
    );
  }
}