Simple.css combines modern frameworks to create a universal framework. Powered by our in house AT.css with other frameworks like w3.css, bootstrap.css, and FontAwesome.css to create the universal framework. Yes, the name is Simple.
Installing Simple.css is well... Simple. Go to https://www.ariel100araya.github.io/Simple.css/index.html, in the menu, click on install and it should just "work"!