HTML commonly used tags optgroup, sub, sup and bdo sample code_HTML/Xhtml_web page production
WBOY
Release： 2016-05-16 16:42:11
Original
1477 people have browsed it
Optgroup is used in select tags to make the drop-down list content more organized
Copy code
The code is as follows:
sub superscript sup subscript can be used together with for comments dbo dir tag can be used together to change the output direction of text , right->left
Tip: You can modify part of the code before running
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
