The login page must be accessible from the navigation menu
The login form must include fields for the user to enter their registered username and password and the system should validate the username and password combination to verify the user's identity
Once the user logged in, they have access and permission to leave a comment under the articles or like/unlike them and to book a class
The user can not be able to access any restricted content or features until they are logged in to their account
As a user/admin, I can log in to the website so that I have the ability to book a class and/or comment on an article, or like/unlike it