The :button selector selects button elements, and input elements with type=button.
Select <button> elements and <input> elements with type="button":
<!DOCTYPE html> <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script> $(document).ready(function(){ $(":button").css("background-color", "red"); });//from w ww. j a va 2 s . c o m </script> </head> <body> <form action=""> Name: <input type="text" name="user"><br> Password: <input type="password" name="password"><br> <button type="button">Useless Button</button> <input type="button" value="CSS"><br> <input type="reset" value="Reset"> <input type="submit" value="Submit"><br> </form> </body> </html>