How to integrate custom css to fckeditor?

Can anyone say

How to integrate开发者_如何学运维 custom css file to fckeditor or

which are the files need to edit and how

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By default fckeditor uses editor/css/fck_editorarea.css

In your init you can set: FCKConfig.EditorAreaCSS = '/youstylesheet.css' ;

you can also use an xml file to define certain properties to your elements, see: http://docs.cksource.com/FCKeditor_2.x/Developers_Guide/Configuration/Styles