LandingBlocks is a set of 18 responsive UI blocks (hero, pricing, features, testimonials, FAQ…) in plain HTML + Tailwind, with light/dark mode built in. Unlike component libraries, there's nothing to install: open it in your browser, copy any block, or stack blocks in the built-in builder and export a complete, self-contained HTML page in one click. No build, no npm, no dependencies, no lock-in — just clean HTML you fully own.