What is the purpose of Docntye in HTML what is the pattern and what business hooks are there

Source: Internet
Author: User

1 in-progress validation of the document 2 determines the rendering mode of the browser

Standard mode is strict,

Weird patterns and promiscuous patterns are not allowed, old, wrong

Business hooks with progressive enhancements elegant downgrade

Incremental increase is mainly for the bottom version of the browser for page construction, to ensure basic execution. Interactive and improved for high-version browsers, additional features

Gracefully downgrade, build features from the start, and then compatible with the bottom version of the browser

Triangle

width:50px

height:50px

Backround:red

Backround-color:red

Border-top;2 Solid Red

Border-right

border-bottom:20px Solid Transparent

border-left:20px

}

What is the purpose of Docntye in HTML what is the pattern and what business hooks are there

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.