How to do this type of animation in WordPress

This type of animation can be achieved in WordPress using a combination of HTML, CSS, and JavaScript. You can use the HTML to create the sidebar element, the CSS to style it, and the JavaScript to add the animation.

Here is an example of how you could do this:

HTML:

<div class="sidebar">
  <div class="sidebar-content">
    <!-- Sidebar content goes here -->
  </div>
</div>

CSS:

.sidebar {
  position: fixed;
  right: -100%;
  width: 300px;
  height: 100%;
  background-color: #fff;
  transition: right 0.5s ease-in-out;
}

.sidebar.active {
  right: 0;
}

JavaScript:

window.addEventListener('scroll', function() {
  const sidebar = document.querySelector('.sidebar');
  sidebar.classList.add('active');
});