Can I name my id="anything I want" or there's a PROPER NAMES ??

Question

IDs

Answer 1

don't you mean user name?
than yes you can choose anything for it as long as it is not offensive and imitation of some other user

Answer 2

@ James
no you can't have spaces in id name

https://stackoverflow.com/questions/70579/what-are-valid-values-for-the-id-attribute-in-html

Answer 3

You can name them what ever you want.

Answer 4

Can you have spaces, though, in HTML element IDs? If so, how do you select them in CSS?