Please help me / the error arises every exercise


#1



https://www.codecademy.com/zh/courses/web-beginner-en-JwhI1/0/2?curriculum_id=50a3fad8c7a770b5fd0007a1


Uncaught ReferenceError: $ is not defined


Replace this line with your code. 
$(document).ready(function(){
    $('div').fadeOut('fast');
});


#2

@lin_xianseng,
++ jQuery not loaded n china.... $ is not defined..

In China because of the GFW,many websites won't work correctly. So jquery failed to react in codes below
《script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"script》 --->these codes just can't work.

You can use "http://libs.baidu.com/jquery/1.10.2/jquery.min.js" instead or use VPN to 科学上网