open-web-inspector
The open source web element inspector - AI-controllable DOM inspection with live CSS editing, hover highlighting, and developer tools integration
powercss
Unleash PowerCSS to create custom styling for every user of your web application. PowerCSS uses merging, caching, compression, and double-buffering to exceed the speed and flexibility of static CSS. https://www.youtube.com/watch?v=rnkMjzhxw4s
jquery.powercss
Unleash PowerCSS to create custom CSS for every user that visits your site. PowerCSS uses merging, caching, compression, and double-buffering to exceed the speed and flexibility of static CSS. https://www.youtube.com/watch?v=rnkMjzhxw4s