bar-brand" href="./index.html">Basic</a>
            <button class="navbar-toggler"
            type="button" data-toggle="collapse" data-target="#navbarsExampleDefault"
            aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span>
            </button>
            <div class="collapse navbar-collapse" id="navbarsExampleDefault">
                <ul class="navbar-nav ml-auto">
                    <li class="nav-item active