cal.pub0.org/components/Modal.tsx

import { Fragment } from "react";
import { Dialog, Transition } from "@headlessui/react";
import { CheckIcon } from "@heroicons/react/outline";

export default function Modal(props) {
  return (
    <Transition.Root show={props.open} as={Fragment}>
      <Dialog
        as="div"
        static
        className="fixed z-50 inset-0 overflow-y-auto"
        open={props.open}
        onClose={props.handleClose}>
        <div className="flex items-end justify-center min-h-screen pt-4 px-4 pb-20 text-center sm:block sm:p-0">
          <Transition.Child
            as={Fragment}
            enter="ease-out duration-300"
            enterFrom="opacity-0"
            enterTo="opacity-100"
            leave="ease-in duration-200"
            leaveFrom="opacity-100"
            leaveTo="opacity-0">
            <Dialog.Overlay className="fixed inset-0 bg-gray-500 z-0 bg-opacity-75 transition-opacity" />
          </Transition.Child>

          {/* This element is to trick the browser into centering the modal contents. */}
          <span className="hidden sm:inline-block sm:align-middle sm:h-screen" aria-hidden="true">
            &#8203;
          </span>
          <Transition.Child
            as={Fragment}
            enter="ease-out duration-300"
            enterFrom="opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95"
            enterTo="opacity-100 translate-y-0 sm:scale-100"
            leave="ease-in duration-200"
            leaveFrom="opacity-100 translate-y-0 sm:scale-100"
            leaveTo="opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95">
            <div className="inline-block align-bottom bg-white rounded-lg px-4 pt-5 pb-4 text-left overflow-hidden shadow-xl transform transition-all sm:my-8 sm:align-middle sm:max-w-sm sm:w-full sm:p-6">
              <div>
                <div className="mx-auto flex items-center justify-center h-12 w-12 rounded-full bg-green-100">
                  <CheckIcon className="h-6 w-6 text-green-600" aria-hidden="true" />
                </div>
                <div className="mt-3 text-center sm:mt-5">
                  <Dialog.Title as="h3" className="text-lg leading-6 font-medium text-gray-900">
                    {props.heading}
                  </Dialog.Title>
                  <div className="mt-2">
                    <p className="text-sm text-gray-500">{props.description}</p>
                  </div>
                </div>
              </div>
              <div className="mt-5 sm:mt-6">
                <button type="button" className="btn-wide btn-primary" onClick={() => props.handleClose()}>
                  Dismiss
                </button>
              </div>
            </div>
          </Transition.Child>
        </div>
      </Dialog>
    </Transition.Root>
  );
}