This manual is protected by copyright law and international conventions, and the author reserves the right to make final changes to this manual and this statement.
Part of the content of this manual refers to Su Chen Xiaoyu’s version of the CSS2.0 manual and the World Wide Web Consortium (W3C) public network documents.

Since this manual is updated continuously, there will be more versions over time. Various versions of the manual have been circulated on the Internet, and the new version may correct the errors in the old version and add new content. Please refer to the official website of the CSS Reference Manual of this site, because the official website is the latest version at all times.
Individuals or organizations that reprint the content of this site are also requested to retain the copyright and related link information of this site so that users can find the official website and obtain the latest version of the manual.
Version Information Version Information
CSS Reference Manual v4.2.4 Update Time: 2017-03-10
Add descriptions and examples of sibling selectors, adjacent selectors, etc.;
Removed attributes in the entire only-firefox directory;
Added -webkit-overflow-scrolling property reference;
Fix the problem of chm garbled characters on MAC (thanks to @gucong3000 children's shoes);
Revised some Issues raised by enthusiastic users;
Added calc() compatibility description;
Fixed the problem of horizontal scroll bar appearing in navigation bar;

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