In Properties view, click the Convert to CSS button but this button is disabled..
can u tell me why this button is disabled??
The option is enabled only when you change any of the property values in the style section. The css file represents the changed value details. So no change means, no need for the css file. (try chaging any of the font details or the color detials)
However i also face some usability issue in the CSS work flow. So please file a JIRA request.