SpinBolt is a collection of 10 minimal, clean, circular, animated loading spinners implemented in single element and CSS/CSS3.
css-loader is a set of loading indicators / spinners built using single DIV element and pure CSS/CSS3.
Display an iOS-style loading indicator while data in a specific area is loading. Built with pure CSS and CSS3.
Three Dots is a small CSS/CSS3 library that provides a set of 19 fancy animated loading spinners created with three dots.
SpinThatShit is a set of 12+ pure CSS single element loading spinners which can be used to indicate the content loading status in an elegant way.