im not sure that emo qualifies as a style?
as someone living in London and within the
alternative(gothic/rock/punk) community, i would like to point out
that, emo is generally a subculture of the alternative community.
They can dress in several different styles such as gothic, punk,
cyberpunk or rock. What defines them as emo are their philosophy to
life, and the sort of music they tend to listen to. In fact, emo
comes from "emotional" which denotes the sort of music they often
listen to.
Personally, I belong to the gothic culture.