1. TreeView: Allows easy navigation in CSS file.

  2. Validation Service: Check errors in CSS file, and provide detailed report.

  3. Web Page Preview: Test your work on CSS file immediately via HTML Web Page Preview Window.

  4. CSS Editor:  Add new parameters and design options to CSS file quickly and easily (support CSS 2.0 defines). 
                                   4 Design sections:

                                   1. Text – Add text design to the CSS file
                                   2. Display – Add background, and choose position.
                                   3. Border – Add Border Style and Width
                                   4. Dimension – Set Padding and Margin   
For more information visit: Users Guide