Astyle is a software application that lets you edit and design style sheet (CSS) code from a visual interface without the need for any code typing.
CSS (Cascading Style Sheets) allows to separate the representation definitions of such structured documents as HTML, XHTML, XML from their content, which is an effective principle in the design of web sites.

Astyle CSS Editor comes with a preview that shows you how each element will be displayed in the browser. The style sheet values and properties can be selected from a grouped list, using simple checkboxes. The program displays the style sheet in an easy to read property tree with icons for each property, and options to add comments or mark specific properties.

Features
Visual easy-to-use interface
Graphic tree-type view of attachment files and the CSS structure
Grouped view of properties and selectors
Automatic selection and grouping of CSS selectors from a markup language document
Source CSS, HTML, XML highlight code editor
Active preview current selectors and documents with IE and Mozilla support
Clean up HTML document via CSS
Icon associate dictionary
Copy, Paste and Cut operations
Drag and Drop operations
And more...
Supports: CSS, HTML, XML, XHTML.