Tisa Admin is a clean HTML5/CSS3 backend template based on Twitter Bootstrap 3 Framework, it’s cross-browser compatible and works great on mobile devices. Tisa Admin has a lot of features, custom pages and has very handy style switcher so you can easily change colors and side navigation width. For easy customization less files are included in this template.
Demo: http://themeforest.net/item/tisa-premium-admin-template/7223491