Pure.CSS is a Cascading Style Sheet (CSS) framework developed by Yahoo. It is used to make website faster, beautiful and responsive.

For an interview question about Pure.CSS, the correct answer would be:

Pure.CSS is a lightweight and minimalistic CSS framework created by Yahoo. It’s designed to provide a set of responsive and modular CSS components for building web interfaces. Pure.CSS focuses on simplicity and follows a mobile-first approach, making it easy to create clean and efficient web designs without the bloat of heavier frameworks. It offers a grid system, buttons, forms, tables, and other UI components that can be easily customized and integrated into web projects.