popup window w3schools code example

Example 1: how to make popup modal in jquery with example

<!-- AJAX response must be wrapped in the modal's root class. -->
<div class="modal">
  <p>Second AJAX Example!</p>
</div>

Example 2: how to make popup modal in jquery with example

$('#sub-modal').modal({
  closeExisting: false
});

Example 3: popup JavaScript code

document.getElementById("open-popup-btn").addEventListener("click",function(){
  document.getElementsByClassName("popup")[0].classList.add("active");
});
 
document.getElementById("dismiss-popup-btn").addEventListener("click",function(){
  document.getElementsByClassName("popup")[0].classList.remove("active");
});