[MSDN Library June 1998] Em Dash and Em Space Both Return Same ANSI Values (53.4523809523809%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Word

[MSDN Library June 1998] EM (8.63520408163265%)

MSDN Library Visual Studio 6.0 > Platform SDK > Internet/Intranet/Extranet Services > Dynamic HTML > DHTML References > HTML References > HTML Elements

[MSDN Library June 1998] EM (6.76020408163265%)

MSDN Library Visual Studio 6.0 > Platform SDK > Internet/Intranet/Extranet Services > Dynamic HTML > DHTML References > Document Object Model References > Objects