Building a web app for desktop and mobile devices? Developr is for you. Write your code once, and let it handle the magic of responsive webdesign. Developr Admin skin is a flexible responsive HTML5/CSS3 template, built on the mobile-first principle and based on the solid fundations of HTML5 Boilerplate and 320andUp, which provides a rich set of styles and features for all your needs.
Updated to v1.5! See at the bottom for a detailed list of changes.