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Web standards consist of HTML, CSS, JavaScript, HTTP, URL, XML, SVG and other standards. Detailed description: 1. HTML, a standard language used to create the structure of web pages; 2. CSS, a standard language used to control the style and layout of web pages; 3. JavaScript, a scripting language used to add interactive and dynamic effects to web pages; 4 , HTTP, a protocol used to transmit and exchange information on the Web; 5. URL, an address format used to locate and access Web resources; 6. XML, etc.
# Operating system for this tutorial: Windows 10 system, Dell G3 computer.
Web standards are a set of specifications and guidelines used to ensure the consistency and accessibility of web pages across different browsers and devices. These standards are developed and maintained by multiple organizations and institutions, including the World Wide Web Consortium (W3C), the International Organization for Standardization (ISO), and the Internet Engineering Task Force (IETF). Below are some of the important standards that make up the web standards.
HTML (Hypertext Markup Language): HTML is a standard language used to create the structure of web pages. It defines a set of tags and elements used to describe the structure, text, images, links, etc. of a web page. HTML5 is the latest version of HTML, which introduces many new features and improvements, such as multimedia support, semantic elements, and form validation.
CSS (Cascading Style Sheets): CSS is a standard language used to control the style and layout of web pages. It defines the appearance of elements through selectors and properties, such as color, font, size, position, etc. CSS3 is the latest CSS version and introduces many new features, such as transition effects, animations, and responsive design.
JavaScript: JavaScript is a scripting language used to add interactive and dynamic effects to web pages. It can operate web page elements through DOM (Document Object Model) to achieve functions such as user interaction and data processing. The JavaScript standard is developed and maintained by the ECMA International Organization, and the latest version is ECMAScript 2020.
HTTP (Hypertext Transfer Protocol): HTTP is a protocol used to transmit and exchange information on the Web. It defines the communication rules between the client and the server, including request and response formats, status codes, header information, etc. HTTP/1.1 is the currently widely used version, and HTTP/2 and HTTP/3 are the latest versions, introducing features such as more efficient transmission and multiplexing.
URL (Uniform Resource Locator): URL is an address format used to locate and access Web resources. It contains information such as protocol, host, path, and query parameters to uniquely identify a resource. The standard for URLs is maintained by the IETF, and the latest version is RFC 3986.
XML (Extensible Markup Language): XML is a markup language used to describe the structure and content of data. It uses custom labels and attributes to represent data, with good readability and scalability. XML is widely used in fields such as data transmission and configuration files. XML standards are developed and maintained by the W3C.
SVG (Scalable Vector Graphics): SVG is a standard format for drawing vector graphics. It uses XML syntax to describe graphics and can be scaled and transformed losslessly. SVG is widely used in fields such as web graphics and animation. SVG standards are developed and maintained by the W3C.
In addition to the above standards, there are many other Web standards, such as Web Accessibility (accessibility), WebRTC (Web Real-time Communication), Web security and Web performance, etc. Together, these standards form the basis for web development, allowing developers to create web applications with good user experience and cross-platform compatibility.
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