I found serious bug! I will describe how to reproduce this bug:
oFCKeditor.Config['EditorAreaCSS'] = 'some/file.css';
in some/file.css is standard css file. Everything ok, no problems...
But if I write into this file standard css order:
Everything seems to work fine but that is not true. File was imported succesfuly, styles changed according to 'some/other/file.css', but try to do this:
1) Click into FCKeditor area and change some text
2) Click on Source button (the source code will appear)
3) Click on Source button again (you will get back into WYSIWYG area) - still everything seems fine, style is ok but follow the last step
4) Click on submit button
The submited text is now 'null' and everything what was really in the FCKeditor area disappeared forever!!!! Even if everythink looked fine...
For reproducing the bug don't do anythink else than what is described in four steps above. When you write something in FCKeditor area after step 3 the bug will not "work".
I think this is serious bug because @import can easily implement different sets of styles without rewriting the same code into many files. And disappearing the text after submitting the form is really very serious issue.