CKEditor: How to change the main content area's padding?

Is there any way to change the main content area's p开发者_高级运维adding (per instance basis)? I am looking into the skins css files and still haven't got any clues.

Thanks in advance!

Edited

I found content.css but if I'm not wrong, it applies to all instances.

In content.css I changed body CSS to include:

margin: 0 0 0 0;
padding: 0 0 0 0;

This didn't work initially, even after re-publishing (Visual Studio 2010) and checking the file. But then figures that some CSS changes haven't always worked - so after clearing Browser (Chrome 36.0) Cache - It worked :)

I have a solution, a little bit trouble but it should work:

1. Duplicate file ../ckeditor/contents.css as ../ckeditor/contents_xxx.css

2. Add following code to contents_xxx.css, 20px just for example:

   body {padding: 20px;}

3. Edit ../ckeditor/ckeditor.js

   a. Search and replace: 'contents.css' -> cssFile

   b. Add following code to the top of ckeditor.js:

   var cssFile = 'contents.css'; if(document.URL.indexOf("THE_URL_WHICH_YOU_WOULD_LIKE_TO_ADD_PADDING") > -1){ cssFile = 'contents_XXX.css'; }

*Please update "THE_URL_WHICH_YOU_WOULD_LIKE_TO_ADD_PADDING".