HTML, CSS, and JS

The foundational technologies that power websites and web applications

JS, CSS, and HTML logos

HyperText Markup Language

Defines the structure and content of a web page.
Without HTML there's nothing for the browser to display.

Cascading Style Sheets

Controls how the HTML elements look.
Without CSS pages look plain and unstyled.

JavaScript

Adds interactivity and dynamic behavior.
Without JavaScript nothing on the page responds dynamically to user actions.