jQuery CSS Classes
<!DOCTYPE html> <html> <head> <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script> </head> <body> <ul> <li>Item one</li> <li>Item two</li> <li>Item three</li> </ul> <script> // Highlight all list items $("li").addClass("highlight"); // Remove the highlight later $("li").removeClass("highlight"); </script> </body> </html>