Usually the technology to create web content is a mix of XML authoring, XSL transformations and CSS styles.
While XSLT is used to create the HTML layout of the page, the CSS adds the final touches to the design.
The content completion provides property values associated with the property name. All the property names are annotated with descriptions from the CSS specification.
For instance if you enter the property name "color", the completion list will contain: "black", "blue", "purple" a.s.o. In the next image you can see a sample completion list containing property names.
The completion list is activating by pressing the CTRL+Space.
The overall structure of a CSS stylesheet edited in the CSS Editor is available in the Outline view similar with the Outline view of the XML Editor. You can sort the CSS rules alphabetically either by the entire selector or by the last component of the selector.
Different CSS profiles are supported like CSS2, CSS3, etc. and different media types like Braille or screen for instance. You can also choose the verbosity level of the validation warnings.
The validation results are descriptive and in accordance with the W3C specifications. Together with the automatic validation spotting and fixing errors is now a simple task.
Check out the CSS Editor for yourself - Download a free 30-day trial of <oXygen/>.