DD_belatedPNG : better PNG background-image support in IE6
Normalize.css : A modern, HTML5-ready alternative to CSS resets
Normalize.css makes browsers render all elements more consistently and in line with modern standards. ...
emotion : emotion is a high performance, lightweight css-in-js library that supports both string and object based styles.
Skeleton: A Dead Simple, Responsive CSS Boilerplate for Mobile-Friendly Development
