Flask-Project-Template/src/core/templates/body-header.html

<nav class="navbar navbar-expand-lg bg-dark navbar-dark justify-content-center text-center sticky-top">
    <button class="navbar-toggler" type="button" data-toggle="collapse"
            data-target="#navbarTogglerHeader" aria-controls="navbarTogglerHeader"
                aria-expanded="false" aria-label="Toggle Header Navigation">
        <span class="navbar-toggler-icon"></span>
    </button>

        <div id="navbarTogglerHeader" class="row collapse navbar-collapse">
        <div class="col-sm">
            <!-- Branding -->
            <div class="navbar-brand justify-content-center text-center">
                <div class="site-branding">
                    <h1 class="site-title">
                        <a href="{{ url_for('home') }}" title="{{TITLE}} Home" rel="home">
                            Hello World!
                        </a>
                    </h1>
                    <h2 class="site-description">Your Slogan...</h2>
                </div>
            </div>
        </div>

        <div class="col col-lg-auto">
            <!-- Links -->
            <ul class="navbar-nav">
                <li class="nav-item">
                    <a class="nav-link" href="{{ url_for('home') }}">
                        <i class="fas fa-home"></i>&nbsp;&nbsp;Home</a>
                </li>

                <!-- Dropdowns -->
                <!-- Others Dropdown -->

                {% if not current_user.is_authenticated %}
                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown">
                        Account
                    </a>
                    <div class="dropdown-menu">
                        <a class="dropdown-item" href="{{ url_for('login') }}">
                            <i title="Login" class="fas fa-user"></i>&nbsp;&nbsp;Login</a>
                        <a class="dropdown-item" href="{{ url_for('register') }}">
                            <i title="Register A User..." class="fas fa-user-plus"></i>&nbsp;&nbsp;Register</a>
                    </div>
                </li>
                {% endif %}

                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown">
                        Projects
                    </a>
                    <div class="dropdown-menu">
                        <a class="dropdown-item" href="#">
                            <i class="fas fa-code"></i>&nbsp;&nbsp;Code</a>
                    </div>
                </li>

                <!-- Socials Dropdown -->
                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown">
                        Social
                    </a>
                    <div class="dropdown-menu">
                        <a class="dropdown-item" href="mailto:">
                            <i title="Send Us an Email" class="fas fa-envelope"></i>&nbsp;&nbsp;Email</a>
                        <a class="dropdown-item" href="#">
                            <i title="Find Us on Twitter" class="fab fa-twitter"></i>&nbsp;&nbsp;Twitter</a>
                        <a class="dropdown-item" href="#">
                            <i title="Find Us on LinkedIn" class="fab fa-linkedin"></i>&nbsp;&nbsp;LinkedIn</a>
                    </div>
                </li>

                <!-- Donation Dropdown -->
                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown">
                        <i class="fa fa-coin"></i>
                        Donate
                    </a>
                    <div class="dropdown-menu">
                        <a class="dropdown-item" href="#">
                            <i title="Donate via Patreon" class="fab fa-patreon"></i> Patreon</a>
                        <a class="dropdown-item" href="#">
                            <i title="Donate via Paypal" class="fab fa-paypal"></i> Paypal</a>
                    </div>
                </li>

                <!-- End Dropdowns -->

                <li class="nav-item">
                    <a class="nav-link" href="{{ url_for('about') }}">
                        <i class="far fa-address-card"></i> About</a>
                </li>

                {% if current_user.is_authenticated or oidc_loggedin() %}
                    <li class="nav-item">
                        <a class="nav-link" href="{{ url_for('logout') }}">
                            <i class="fas fa-sign-out-alt"></i> Logout</a>
                    </li>
                {% endif %}
            </ul>
        </div>
    </div>
</nav>