PureCSS, accessible via https://purecss.io/, is a minimalist CSS framework designed for web developers who aim to create clean and responsive web layouts and components without excessive overhead. It offers a set of small, responsive CSS modules that you can use in every web project. PureCSS focuses on keeping your web pages lightweight, with the whole set of modules clocking in at a slim 3.8KB when gzipped. This framework is particularly ideal for developing fast-loading web pages and applications that perform efficiently on mobile and desktop devices alike. PureCSS emphasizes simplicity and aims to be easy to use alongside other web development tools and frameworks, promoting a smooth integration into various project environments.