Here is how you can create a before-and-after image slider on WordPress. Simply log in to your WordPress dashboard, go to media, and upload the before and after images you want to use for the slider.

After that, create a page or post and use a Custom HTML block. Now, from the provided code, paste the DIV class into the HTML block and publish the page. After that, go back to your dashboard, navigate to Appearance, and the theme file Editor. And on the theme functions.php, add the provided script to it and update the file.

Now use the provided CSS to customize> Additional CSS or anywhere your theme permits. And now you have a beautiful before-and-after slider without any plugins.

We hope this video was useful to you. Thank you very much.