Creating Correct Charset Encoding

If you use UTF-8 as charset, check every file you save with UTF-8 compliant editor and remove UTF-8 BOM from beginning of file if it's present, otherwise this will break display in IE, however Mozilla browsers seem to be immune to the problem.

UTF-8 BOM characters written in HEX are EF BB BF

BOM is the abbreviation for Byte Order Mark.