This professional looking and highly flourished skin is suitable for almost any kind purpose. Cleanity is a compilation of all features you might need on an administration theme.

Features:

• Valid XHTML / CSS
• Light XHTML with Fast Load
• Flash Like Animated Drop Down Navigation
• Rounded Corners with No Images
• Accordion Side Menu
• Modal Boxes on any Element Desired
• Jquery based Calendar
• Tabbed Lists (Also available for any element)
• Quick Visual Links with Graphical Navigation
• Nicely Styled Forms
• Visual WYSIWYG Editor on Desired Textareas
• 3 Columns + 2 Columns Wide Version
• Works in all Major browsers both in Windows & Mac OSX

When seeing live preview, hit enter or click login directly to get passed login and reach the main page.

I believe Cleanity will grant all your design related needs for an administration and CMS skin.

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themeforest-41517-cleanity-complete-admin-cms-skin-.zip