The :checkbox selector selects input elements with type=checkbox.
$(":checkbox")
Select all <input> elements with type="checkbox":
<!DOCTYPE html> <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script> $(document).ready(function(){ $(":checkbox").wrap("<span style='background-color:red'>"); });// w w w.ja va2 s . c om </script> </head> <body> <form action=""> Name: <input type="text" name="user"><br> I have a bike: <input type="checkbox" name="vehicle" value="Bike"><br> I have a car: <input type="checkbox" name="vehicle" value="Car"><br> I have an airplane: <input type="checkbox" name="vehicle" value="Airplane"><br> <input type="submit"> </form> </body> </html>