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This article introduces the relevant knowledge of "what are the three elements of the front end of web". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The so-called three elements are HTML, CSS and JavaScript.

The three languages are not only the basic technical languages in the front-end development of web, but also the focus of recruitment in major enterprises. Of course, with the rapid development of the Internet, these three technical languages will also evolve, such as HTML5, CSS3 and jQuery.

HTML can be said to be the carrier of web content. The content is the information that the web page maker put on the page for users to browse, which can include text, pictures, videos and so on.

The CSS style is the expression. It's like the coat of a web page. For example, the title font, color changes, or add background pictures, borders, and so on. All these things that are used to change the appearance of content are called representations.

JavaScript is used to achieve special effects on web pages. Such as: mouse over pop-up drop-down menu. Or mouse over the background color of the table. There is also the rotation of focus news (news pictures). It can be understood that animations and interactions are generally realized with JavaScript.

JQuery is a lightweight JS library, users can use jQuery to more easily deal with HTML, events, achieve animation effects, and convenient to provide AJAX interaction for the website. JQuery also has another major advantage is that its documentation is very complete, and various applications are also very detailed, while there are many mature plug-ins to choose from, so that users' HTML pages can keep code and HTML content separate, without having to insert a bunch of JS in HTML to call commands.

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