Modal Opened by Multiple Triggers

Allow multiple elements to trigger the opening of the same modal, using event delegation to minimize the number of event listeners.
<!-- HTML Structure -->
<div id="myModal" class="modal">
  <!-- Modal content -->
  <div class="modal-content">
    <span class="close">&times;</span>
    <p>Some text in the Modal..</p>

<button class="modal-trigger">Open Modal</button>
<button class="modal-trigger">Open Modal Too</button>
This HTML structure includes a modal with a unique ID and two buttons with the same class. Both buttons are designed to trigger the opening of the modal.
/* CSS for the Modal */
.modal {
  display: none; /* Hidden by default */
  position: fixed; /* Stay in place */
  z-index: 1; /* Sit on top */
  left: 0;
  top: 0;
  width: 100%; /* Full width */
  height: 100%; /* Full height */
  overflow: auto; /* Enable scroll if needed */
  background-color: rgb(0,0,0); /* Fallback color */
  background-color: rgba(0,0,0,0.4); /* Black w/ opacity */

.modal-content {
  background-color: #fefefe;
  margin: 15% auto; /* 15% from the top and centered */
  padding: 20px;
  border: 1px solid #888;
  width: 80%; /* Could be more or less, depending on screen size */

.close {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;

.close:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
The CSS styles for the modal include hiding the modal by default and formatting for the modal content. The 'close' class styles the close button.
// JavaScript to open modal with multiple triggers
// Event delegation is used to minimize the number of event listeners

document.addEventListener('click', function(event) {
  if ('modal-trigger')) {
    document.getElementById('myModal').style.display = 'block';

document.querySelector('.close').onclick = function() {
  document.getElementById('myModal').style.display = 'none';

window.onclick = function(event) {
  if ( == document.getElementById('myModal')) {
    document.getElementById('myModal').style.display = 'none';
The JavaScript adds a single event listener to the document that listens for clicks on any element with the 'modal-trigger' class, then opens the modal. It also includes the script to close the modal when clicking the close button or outside the modal content.