What is the difference between html and html5? Difference analysis

HTML (Hypertext Markup Language) is a markup language used to write web pages. HTML5 is the latest version of HTML. It brings some new functions and features that are different from previous versions. These features make HTML a more powerful and flexible markup language. Let's take a look at the difference between HTML and HTML5:

1. Better semantics
HTML5 adds many new semantic tags, such as section, article, header, footer, etc. These tags allow developers to more accurately define the structure and meaning of documents, allowing search engines to better understand documents and crawl web content, thereby improving web page rankings.

2. Multimedia support
HTML5 supports the playback of multimedia files, including audio and video, and does not require the installation of third-party plug-ins, such as Flash. This greatly improves the operating efficiency of web pages and also makes the browser more secure.

3. Local storage
HTML5 provides local storage mechanisms, including Web storage and IndexedDB. Web storage provides a simple storage mechanism that can store key-value pairs locally in the browser. IndexedDB is a more powerful local database that can handle large amounts of data efficiently.

4. Web Workers
HTML5 introduces Web Workers, which allows developers to run JavaScript scripts in the background, which can improve the response speed of the page and also make the page code more modular and maintainable. .

5. Canvas and SVG
HTML5 introduces Canvas and SVG. Canvas is a bitmap image that can be created through the JavaScript API, while SVG is an XML-based vector graphics format. This allows complex graphics to be drawn through code without the need for graphics software.

6. Better form support
HTML5 introduces many new form elements, including date, time, search, etc. This allows developers to create forms faster and easier, and the page interacts better.

7. Better debugging tool support
HTML5 provides many new APIs, allowing developers to better debug and test. This includes the Console API, which outputs debugging information to the browser's console.

In short, HTML5 brings us many new features and functions, making it easier for us to create reliable and powerful web pages. Although some older versions of browsers may not support HTML5, HTML5 continues to drive the evolution and development of browsers and web technology over time.

The above is the detailed content of What is the difference between html and html5? Difference analysis. For more information, please follow other related articles on the PHP Chinese website!