11. HTML tutorial-(HTML5 Standard)

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Hypertext markup language (English: HyperText Markup Language, HTML) is a standard markup language for creating web pages.

You can use HTML to build your own WEB site, and HTML runs on the browser and is parsed by the browser.

In this tutorial, you will learn how to use HTML to create a site.

HTML is easy to learn! I believe you can learn it soon!

This tutorial contains hundreds of HTML instances.

Using the editor of this site, you can easily modify HTML online and view the running results of the instance.

注意: For Chinese pages, you need to use <meta charset=”utf-8”> Declare the code, otherwise there will be garbled. Some browsers (such as 360browser) will set GBK as the default encoding, then you need to set it to <meta charset=”gbk”>。

Suffix name of the HTML document

  • .html

  • .htm

There is no difference between the above two suffix names, and both can be used.

开始学习HTML!

HTML instance

Hundreds of online instances are included in the HTML manual, and you can edit and view the running results online.

查看 HTML 实例!

HTML reference manual

In the rookie tutorial, we provide a complete HTML reference manual, including tags, attributes, colors, entities, and so on.

HTML 标签参考手册

HTML/CSS/JS online tool

HTML/CSS/JS online tools can edit HTML, CSS, JS code online and view the results in real time. You can also save and share high-quality code: https://c.runoob.com/front-end/61

  • 11.17. HTML layout

    Page layout is very important to improve the appearance of a website. Please design your web page layout carefully. 11...
    2025-10-25 13:33:13 UTC
  • 11.18. HTML forms and input

    HTML forms are used to collect different types of user input. The HTML form represents an area in the document that contai...
    2025-10-25 13:33:16 UTC
  • 11.19. HTML framework

    By using frames, you can display more than one page in the same browser window. iframe syntax: The URL points to a d...
    2025-10-25 13:33:13 UTC
  • 11.20. HTML Color

    The HTML color is a mixture of red, green and blue. 11.20.1. Color value ¶ The HTML color is defined by a hexadecim...
    2025-10-25 13:33:12 UTC
  • 11.21. HTML color name

    11.21.1. The following color names are currently supported by all browsers. ¶ The color names are defined in the HTML...
    2025-10-25 13:33:07 UTC
  • 11.22. HTML color value

    The colors are composed of red (R), green (G), and blue (B). 11.22.1. Color value ¶ Color values are represented by...
    2025-10-25 13:33:09 UTC
  • 11.23. HTML script

    JavaScript makes HTML pages more dynamic and interactive. 11.23.1. HTMLtags ¶ tags are used to define client s...
    2025-10-25 13:33:14 UTC
  • 11.24. HTML character entity

    Reserved characters in HTML must be replaced with character entities. Some characters that cannot be found on the keyboard...
    2025-10-25 13:33:10 UTC
  • 11.25. HTML uniform Resource Locator

    URL is a web address. URL can consist of letters, such as “runoob.com”, or the Internet Protocol (IP) address: 192.68.20.5...
    2025-10-25 13:33:10 UTC
  • 11.26. HTML Quick check list

    HTML Quick check list. You can print it for daily use. 11.26.1. HTML basic documentation ¶ document title vis...
    2025-10-25 13:33:12 UTC
  • 11.27. Abbreviation and full name of HTML tag

    The following table lists the abbreviation and full name of the HTML tag: Label English full name Chinese desc...
    2025-10-25 13:33:10 UTC
  • 11.28. You have finished your HTML study. What should you learn next?

    11.28.1. HTML summary ¶ This tutorial has taught you how to create a site using HTML. HTML is a universal markup la...
    2025-10-25 13:33:08 UTC
  • 11.29. HTML- XHTML

    XHTML is a HTML written in XML format. 11.29.1. What is XHTML? ¶ XHTML refers to Extensible Hypertext markup lang...
    2025-10-25 13:33:15 UTC
  • 11.30. Introduction to HTML5

    HTML5 is the latest revised version of HTML, which was developed by the World wide Web Consortium (W3C) in October 2014. ...
    2025-10-25 13:33:16 UTC
  • 11.31. HTML5 browser support

    You can get some older browsers (which don’t support HTML5) to support HTML5. 11.31.1. HTML5 browser support ¶ Mode...
    2025-10-25 13:33:09 UTC
  • 11.32. New elements of HTML5

    11.32.1. New elements of HTML5 ¶ HTML 4.01 has changed a lot since 1999. Today, several elements in HTML 4.01 have be...
    2025-10-25 13:33:09 UTC

Principles, Technologies, and Methods of Geographic Information Systems

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In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.