This repository maintains the HTML Living Standard, the definitive specification for HTML. It processes a Wattsi-formatted source file to generate the HTML specification in multiple formats (single-page, multi-page, and developer's edition). The repository includes automated build and deployment workflows, comprehensive documentation (FAQ, contributing guidelines), and interactive demos showcasing HTML features. Key reusable components include a variable highlighting utility for algorithms, image processing filters, a find-as-you-type search implementation, and a definition lookup panel. The project is actively maintained with recent commits and employs modern web technologies throughout its tooling and demos.