HTML, CSS and JS are the three core technologies for building web pages.
HTML (Hypertext Markup Language) is a markup language used to describe the structure and content of web pages. With HTML, developers can create web page elements such as headings, paragraphs, lists, links, and images.
CSS (Cascading Style Sheets) is a style sheet language used to define the appearance and layout of web pages. Through CSS, developers can control properties such as fonts, colors, backgrounds, spacing, and size of web pages.
JS (JavaScript) is a programming language used to achieve interactivity and dynamic effects. Through JS, developers can control the behavior of web pages, such as user interaction, data validation, animation, etc.
These three technologies work together in web development to achieve beautiful, interactive websites and applications.
The main differences between HTML, CSS and JS are as follows:
-
HTML (Hypertext Markup Language) is used to define the structure and content of web pages. It is a markup language that contains a series of tags and attributes used to define elements such as text, images, links, etc.
-
CSS (Cascading Style Sheets) is used to define the style and layout of web pages. It is a style sheet language used to control text font, color, size, page layout, background, etc.
-
JS (JavaScript) is a scripting language used to add interactivity and dynamics to web pages. It can respond to elements on the page, implement special effects, validate forms, process data, etc.
Generally speaking, HTML defines the content and structure of a web page, CSS defines its style and layout, and JS adds interactivity and dynamic effects to the page. The three work together to form the basic technology of modern Web pages.