Brad points out some UX problems with a variety of apps that are doing things a little outside of the norm when it comes to their login forms. There is already a bunch of things to get right with forms to begin with (e.g. use the right input types, label your inputs, don’t have whack password requirements, use SSL, etc.)… OMG why complicate it even more?!
A “password manager test” should be a development best practice here. Does it work cleanly with the built-in browser password manager? How about 1Password and LastPass? No? Give it some love, please and thank you.
from CSS-Tricks http://bradfrost.com/blog/post/dont-get-clever-with-login-forms/