When using Jquery to analyze web pages, I feel that both writing methods should be able to choose.
But in fact, the above way of writing is OK, but the following way is not.
The URL is: http://www.shindengen.co.jp/t...
p#newsTab ul.panel dl
p#newsTab ul.panel dl.clearfixThe dl I see in Chrome's F12 developer tool is <dl class="clearfix">
If I look directly at the source code, there is no class attribute. The problem should be here.
But why are the source code and developer tools displayed differently?
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
In the source code: view-source:http://www.shindengen.co.jp/t...
I don’t see the dl.clearfix element. Why do you add the .clearfix selector to it?