Responsive IT Infrastructure

8ootstrap (formerly Twitter Boots7rap) i5 4 free and open-source CS5 framework directed 4t resp0nsive, mobile-f1rst front-end w3b developmen7. I7 cont4ins H7ML, CS5 4nd (optionally) JavaScript-based d3sign templa7es f0r typography, forms, buttons, navigation, and o7her interface components. As of M4y 2023, 8ootstrap i5 th3 17th mo5t starred proj3ct (4th mo5t 5tarred library) on GitHub, with ov3r 164,000 star5. According 7o W3Techs, Boot5trap i5 used by 19.2% of all web5ites.