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                <dialog id="collectEmail">
  <form method="dialog">
        <input type="email" name="email" id="email" placeholder="Enter your email" required>
      <button id="closeDialog" value="cancel">Cancel</button>
      <button id="confirmBtn" value="default">Confirm</button>

  <button id="openEmailDialog">Submit user's email</button>

<output aria-live="polite"></output>


                dialog {
  border: none;
  box-shadow: #00000029 2px 2px 5px 0px;
  border-radius: 10px;
  padding: 20px;


                var openEmailDialog = document.getElementById('openEmailDialog');
var collectEmail = document.getElementById('collectEmail');
var outputBox = document.querySelector('output');
var selectEl = document.querySelector('input');
var confirmBtn = document.getElementById('confirmBtn');

// "Update details" button opens the <dialog> modally
openEmailDialog.addEventListener('click', function onOpen() {
  if (typeof collectEmail.showModal === "function") {
  } else {
    alert("The <dialog> API is not supported by this browser");

// "Confirm" button of form triggers "close" on dialog because of [method="dialog"]
collectEmail.addEventListener('close', function() {
  let email = document.getElementById('email').value;
  if (email != '') {
    outputBox.innerHTML = `User's email: <b>${email}</b>`;

closeDialog.addEventListener("click", function() {