BootWiki教程网
源代码：
点击运行
<!DOCTYPE html> <html> <head> <script src="//cdn.staticfile.net/jquery/1.10.2/jquery.min.js"></script> <script> $(document).ready(function(){ $("p").on("mouseover mouseout",function(){ $("p").toggleClass("intro"); }); }); </script> <style type="text/css"> .intro { font-size:150%; color:red; } </style> </head> <body> <p>Move the mouse pointer over this paragraph.</p> </body> </html>
运行结果