<div class="container">
  <button id="dialogBtn">Show Dialog</button>
  <p class="hidden" id="congratulationsText">Congratulations! You have accepted the offer!</p>
  </di>

  <dialog id="dialog">
    <span id="closeBtn">X</span>
    <p>Click the button below to accept the offer</p>
    <button id="acceptOfferBtn">Accept Offer</button>
  </dialog>
body,
html {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
}
.container {
  height: 100%;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
#closeBtn:hover {
  cursor: pointer;
}
.hidden {
  display: none;
}
/* * https://frontendeval.com/questions/modal-overlay * * Build a modal control and overlay */ 
const dialogBtn = document.getElementById(
  "dialogBtn"
);
const dialog = document.getElementById("dialog");
const closeBtn = document.getElementById("closeBtn");
const acceptOfferBtn = document.getElementById("acceptOfferBtn");
const congratulationsText = document.getElementById("congratulationsText");
dialogBtn.addEventListener("click", (e) => {
  dialog.showModal();
});
closeBtn.addEventListener("click", (e) => {
  dialog.close();
});
acceptOfferBtn.addEventListener("click", (e) => {
  congratulationsText.classList.remove("hidden");
  dialogBtn.classList.add("hidden");
  dialog.close();
});
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