So we have come to the conclusion, that CSS style files will be stored at the user's pc, for later reuse, and that the user can refer to it and steal the content.I do not know many about the following, but it might work.How about, expire the cached file? Would it then be deleted after the expire date, or directly downloaded after that date when called again?If the first case is true, try to write the css with php, and sent a content-type header. (header before the content) Set expire date exactly the current time plus 1 (to ensure the file can be used at all).This way the file gets deleted directly after use, instead of leaving it in the cache.Right?