async def index(request):
    """Index Page."""
    return """
        <link rel="stylesheet"
            href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" />
        <div class="container">
            <header class="navbar navbar-dark" style="background-color: #7952b3">
                <h2 class="navbar-brand">Muffin OAuth Example</h2>
            </header>
            <ul class="nav flex-column mt-5">
                <li class="nav-item">
                    <a class="nav-link" href="/oauth/github">Login with Github</a></li>
                <li class="nav-item">
                    <a class="nav-link" href="/oauth/google">Login with Google</a></li>
            </ul>
        </div>
    """