Check out: https://github.com/uncss/uncss https://github.com/uncss/uncss I've only used it once but it did the job (NOTE: Plain HTML, plain CSS, no build pipel

Check out: https://github.com/uncss/uncss https://github.com/uncss/uncss I've only used it once but it did the job (NOTE: Plain HTML, plain CSS, no build pipeline. So YMMV)