The spec requires the CSS files to be utf-8 (or utf-16):
1.4.1.5: CSS Requirements
External CSS stylesheets referenced by OPS documents must use UTF-8 or UTF-16 encoding. Inclusion of Byte Order Mark (BOM) is mandatory for UTF-16 encoding and optional for UTF-8 encoding.
or rather, you can use whatever encoding you want, but it will be interpreted as if it were utf-8/16.
Last edited by Jellby; 08-18-2011 at 04:07 AM.
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