Web is Web front-end development, which is the process of creating front-end interfaces such as web pages or apps and presenting them to users. Through HTML, CSS, JavaScript and various derivative technologies, frameworks and solutions, the user interface interaction of Internet products is realized.

So what are the HTML, CSS and JavaScript that you must learn to learn the Web? Simply put, it can be understood as follows:

1, HTML:HTML is called Hypertext Markup Language, which is a markup language. HTML5 is the specification of the core language html in the Web.

2.CSS is a computer language used to express file styles such as HTML or XML. CSS3 is an upgraded version of CSS technology.

3.JavaScript is a lightweight, interpretive or just-in-time high-level programming language with function priority. JavaScript is a dynamic scripting language based on prototype programming and multiple paradigms.