What are the web standards?

Web standards include HTML, CSS, JavaScript, DOM, WCAG, WAI-ARIA, SVG, HTTP, RSS and RDF, etc. Detailed introduction: 1. HTML is the basic building block of Web pages, defining the structure and content of the page. HTML standards ensure the accessibility and cross-browser compatibility of the page; 2. CSS is used to control the style and layout of the page. It enables developers to separate style from content, improving the maintainability and reusability of pages; 3. JavaScript, etc.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

Web standards refer to a series of specifications and guidelines developed by W3C (World Wide Web Consortium) to ensure the accessibility, interoperability and sustainability of Web content. The following are some common Web standards:

1. HTML (Hypertext Markup Language): HTML is the basic building block of Web pages and defines the structure and content of the page. HTML standards ensure page accessibility and cross-browser compatibility.

2. CSS (Cascading Style Sheets): CSS is used to control the style and layout of the page. It enables developers to separate style from content, improving page maintainability and reusability.

3. JavaScript: JavaScript is a dynamic scripting language used to add interactivity and dynamic functionality to web pages. The W3C has developed a series of JavaScript standards, such as the ECMAScript specification, to ensure script consistency and interoperability.

4. DOM (Document Object Model): DOM is a standard interface for accessing and manipulating HTML and XML documents. It represents the document as a tree-like structure, allowing developers to easily manipulate and modify the content and structure of the document.

5. WCAG (Web Content Accessibility Guidelines): WCAG is a set of guidelines for evaluating and improving the accessibility of web content. It provides a set of guidelines and technical recommendations to ensure that web content is accessible to people with disabilities.

6. WAI-ARIA (Web Accessibility Initiative - Accessible Rich Internet Applications): WAI-ARIA is a technical specification used to improve the accessibility of Web applications. It provides a set of roles, states, and properties to describe interactive elements in web applications, making them easier to understand and operate for assistive technologies such as screen readers.

7. SVG (Scalable Vector Graphics): SVG is an XML standard for creating scalable vector graphics. It allows developers to create high-quality graphics and animations that can be losslessly scaled to any size without losing clarity.

8. HTTP (Hypertext Transfer Protocol): HTTP is a protocol used to transfer data between a web browser and a web server. W3C has developed a series of HTTP standards, such as HTTP/1.1 and HTTP/2, to improve web performance and security.

9. RSS (Really Simple Syndication): RSS is an XML standard for publishing and subscribing to Web content. It allows users to get the latest news, blogs and other updates through an RSS reader.

10. RDF (Resource Description Framework): RDF is a framework for describing Web resources. It provides a common data model and syntax for representing relationships and properties between resources.

The benefits of following web standards include improving website accessibility, improving user experience, improving search engine rankings, and reducing development and maintenance costs. Therefore, developers should follow these standards to ensure that their web content is of good quality and usability.

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