HTML, CSS, and JavaScript

Note: HTML, CSS, and JavaScript are the three core technologies that run in every web browser and make up every web page.

HTML is used to describe the structure and content of a web page, CSS describes its style and appearance, and JavaScript handles behavior and interactivity.

The usual recommended order is to start with HTML and CSS, then move on to JavaScript once you feel comfortable with the basics of the first two.

It is also worth noting that HTML and CSS are markup languages rather than programming languages, so they are quite different from JavaScript. If your goal is strictly to learn programming, you may want to jump directly to JavaScript or another programming language. Still, because JavaScript is mainly used through the browser, learning HTML and CSS will be useful sooner or later.