运行 ❯
获取您
自己的
网站
×
更改方向
保存代码
更改主题，暗/亮
前往 Spaces
<!DOCTYPE html> <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script> <script> $(document).ready(function(){ $("button").click(function(){ $("p").toggleClass("main"); }); }); </script> <style> .main { font-size: 120%; color: red; } </style> </head> <body> <button>Toggle class "main" for p elements</button> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <p><b>Note:</b> Click the button more than once to see the toggle effect.</p> </body> </html>
