Login page
Plain HTML
<html>
  <!--  HTML -->
    <form
        action="/idp/Authn/UserPassword"
        method="post">   
            <input name="j_username" type="text" />
            <input name="j_password" type="password" />
            <input type="submit" value="Login" />
    </form>
  <!--  HTML -->
</html>