app/templates/admin/login.html

{% extends 'base.html' %}
{% block title %}Login{% endblock %}
{% block css %}
    <link type="text/css" rel="stylesheet" href="{{ url_for('static',filename='admin/login.css') }}">
    <!-- <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.3.0/css/all.min.css"> -->
{% endblock %}
{% block body %}        
        <form id="container" action="/admin/authenticate/" method="post">
            <h1>Log-In</h1>
            <p class="{{message_class}}">{{message}}</p>
            <div>
                <p>Enter Username:</p>
                <input type="username" name="username" required>
            </div>
            <div>
                <p>Enter password:</p>
                <input type="password" name="password" required>
            </div>
            <input type="submit">
            <!-- <button>Sign-in</button> -->
            
        </form>
        <!-- <script src="{{ url_for('static',filename='/login.js') }}"></script> -->
        
{% endblock %}