CSS Blueprint Framework
A big THANKS to Donnie for providing the following information:
Blueprint is a CSS framework designed to cut down development time and ensure cross-browser compatibility when working with Cascading Style Sheets (CSS). It also serves as a foundation for many tools designed to make CSS development easier and more accessible to beginners. Blueprint is released under a modified version of the MIT License, making it free software.
You may check out websites created using the Blueprint CSS Framework: