How to Add a Toast Notification Popup to Blogger website

<div class="T-container">
  <div class="T-close">X</div>
  <div class="T-icon">
    <!-- Replace this with your Telegram SVG icon -->
    <svg xmlns="http://www.w3.org/2000/svg" width="30" height="30" viewbox="0 0 64 64">
      <path d="M56.4,8.2l-51.2,20c-1.7,0.6-1.6,3,0.1,3.5l9.7,2.9c2.1,0.6,3.8,2.2,4.4,4.3l3.8,12.1c0.5,1.6,2.5,2.1,3.7,0.9 l5.2-5.3c0.9-0.9,2.2-1,3.2-0.3l11.5,8.4c1.6,1.2,3.9,0.3,4.3-1.7l8.7-41.8C60.4,9.1,58.4,7.4,56.4,8.2z M50,17.4L29.4,35.6 c-1.1,1-1.9,2.4-2.0,3.9c-0.2,1.5-2.3,1.7-2.8,0.3l-0.9-3c-0.7-2.2,0.2-4.5,2.1-5.7l23.5-14.6C49.9,16.1,50.5,16.9,50,17.4z"></path>
    </svg>
  </div>
  <div class="text-content">
    <h3>
      Hi, Welcome to Techyleaf. Join Our Telegram Channel to get latest updates
      <a href="https://t.me/key2blogging" class="T-button">
        Join Now <span>&rarr;</span>
      </a>
    </h3>
  </div>
</div>

<style>

/* Adjust Popup Background Here */
.T-container {
  position: fixed;
  bottom: -140px;
  width: 90%;
  max-width: 720px;
  display: flex;
  align-items: center;
  background: #05344b;
  color: white;
  font-family: "system-ui", sans-serif;
  padding: 12px 16px;
  border-radius: 10px;
  box-shadow: rgba(0, 0, 0, 0.15) 0px 2px 8px;
  left: 50%;
  transform: translateX(-50%);
  transition: all 1800ms ease;
  z-index: 90000;

}

.T-container.active {
  bottom: 20px;
}

.T-container .text-content h3 {
  color: white;
  font-size: 17px;
  font-family: system-ui;
  padding: 20px 0;
  font-weight: 500;
  line-height: 20px;
}

.T-container .text-content {
  padding: 0 24px;
  padding-right: 40px;
}

/* Adjust Button Background Here */
.T-button {
  display: inline-block;
  padding: 5px 13px;
  background-color: lightyellow;
  border-radius: 8px;
  text-decoration: none;
  color: #333;
  margin: 10px 0px 0px 0px;
  cursor: pointer;
}

.T-button span {
  margin-left: 8px;
}

/* Adjust Icon Background Here */
.T-container .T-icon {
  text-align: center;
  background-color: #0077aa;
  border-radius: 6px;
  padding: 10px;
  box-shadow: rgba(0, 0, 0, 0.15) 1.95px 1.95px 2.6px;
}

/* Adjust Icon Size Here */
.T-container .T-icon svg {
  fill: white;
  width: 30px;
  height: 30px;
}

.T-container .T-close {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

</style>

<script>
const toastContainer = document.querySelector(".T-container");
const closeBtn = document.querySelector(".T-close");
const toastLink = document.querySelector(".T-button");

const hideToastFor30Days = () => {
  const currentDate = new Date();
  const expirationDate = new Date(currentDate.getTime() + 30 * 24 * 60 * 60 * 1000); // 30 days in milliseconds
  localStorage.setItem("toastExpirationDate", expirationDate.getTime());
  toastContainer.classList.remove("active");
};

if (!localStorage.getItem("toastExpirationDate") || new Date().getTime() > localStorage.getItem("toastExpirationDate")) {
  setTimeout(() => {
    toastContainer.classList.add("active");
  }, 1000);
}

closeBtn.addEventListener("click", hideToastFor30Days);
toastLink.addEventListener("click", hideToastFor30Days);
</script>