Appropriate styling approaches can vary for different scripts. All the following are reasons that it is good to avoid presentational markup when text is to be localized.

• problems of resolution to support bold and italics in small CJK characters on-screen
• different ways of emphasising text in Japanese (wakiten & amikake)
• no upper- vs. lower-case distinction in most non-Latin scripts
• no convention of distinguishing between proportional and mono-spaced fonts for some scripts