Elgg : Elgg is an award-winning social networking engine, delivering the building blocks that enable businesses, schools, universities and associations to cr...
Electron : Build cross platform desktop apps with web technologies
Bootstrap : Build responsive, mobile-first projects on the web with the world's most popular front-end component library.
Bootstrap is an open source toolkit for ...
xCSS bases on CSS and empowers a straightforward and object-oriented workflow when developing complex style cascades.
