With the rapid development of the Internet, HTML has become the basis for web development, and HTML5 is the latest version of HTML. Compared with HTML4, HTML5 not only provides richer and more advanced functions, but also enhances accessibility, reliability and scalability. Today we will explore the differences between HTML5 and HTML4.
Semantic markup
Compared with HTML4, HTML5 focuses on semantic markup. The so-called semantic markup refers to describing page content through HTML5 tags and attributes, making the page easier to read and understand by search engines. HTML5 introduces many new tags and attributes, such as
and
tags, which divide content into clearer parts. This not only makes the website structure clearer, but also improves search engine optimization (SEO). Effect.
Multimedia support
HTML5 has very comprehensive support for multimedia. For example, it can play audio and video directly without third-party plug-ins. The browser can support image formats through the standard HTML5tag, and also supports a tag called Canvas, which allows you to draw 2D graphics and animations on the web page. With these features, HTML5 makes the performance of multimedia content on web pages more extensive and rich.
New form elements
HTML5 introduces some new form elements, such asand, making the form more readable and easier to use. Among them, the date attribute allows the user to select a date, and the search attribute allows the user to search for content and automatically complete it when the user enters the content. These form elements make creating forms easier and interacting with users more natural.
Enhanced accessibility
HTML5’s semantic markup and multimedia support can improve website accessibility. For example, it uses
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