Explore key terms and definitions for modern web development concepts, frameworks, and technologies.
A set of rules and protocols that allow different software applications to communicate with each other.
An approach to web design that makes web pages render well on a variety of devices and window or screen sizes.
A free and open-source front-end JavaScript library for building user interfaces or UI components.
The fifth revision of the HyperText Markup Language standard used for structuring and presenting content on the web.
A style sheet language used for describing the presentation of a document written in HTML.
Explore our full interactive tutorials to understand these concepts in practice.