This is a free PSD file you can download for a user friendly sign in page with important elements that each login form should have:
1- It has a background to push out the main form block
2- Has “Show Password” and ” Remember me” (Why these are important?)
Please read UX Design for Sign in and Sign Up Pages to get the answer.
3- Reminds users of other ways of login (Social Media)
4- Login uses email address for user name, so users don’t have to think what was their user name (read above article)
5- Shows “Register Now” if they don’t have login info