fix navbar with new css

Author: Um9i

{{cookiecutter.app_slug}}/project/client/templates/header.html

@@ -1,35 +1,31 @@
-<header class="site-header">
-  <!-- Navigation -->
-  <nav class="navbar navbar-default navbar-fixed-top" role="navigation">
-    <div class="container">
-      <!-- Brand and toggle get grouped for better mobile display -->
-      <div class="navbar-header">
-        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
-          <span class="sr-only">Toggle navigation</span>
-          <span class="icon-bar"></span>
-          <span class="icon-bar"></span>
-          <span class="icon-bar"></span>
-        </button>
-          <a class="navbar-brand" href="{{ url_for('main.home') }}">{{ config.APP_NAME }}</a>
-      </div>
-      <!-- Collect the nav links, forms, and other content for toggling -->
-      <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
-        <ul class="nav navbar-nav">
-          <li><a href="{{ url_for('main.about') }}">About</a></li>
-          {% if current_user.is_authenticated %}
-            <li><a href="{{ url_for('user.members') }}">Members</a></li>
-          {% endif %}
-        </ul>
-        <ul class="nav navbar-nav navbar-right">
-          {% if current_user.is_authenticated %}
-            <li><a href="{{ url_for('user.logout') }}">Logout</a></li>
-          {% else %}
-            <li><a href="{{ url_for('user.login') }}"><span class="glyphicon glyphicon-user"></span>&nbsp;Register/Login</a></li>
-          {% endif %}
-        </ul>
-      </div>
-      <!-- /.navbar-collapse -->
-    </div>
-    <!-- /.container -->
-  </nav>
-</header>
+<!-- Navigation -->
+<nav class="navbar fixed-top navbar-expand-lg navbar-dark bg-dark">
+  <!-- Navbar Brand -->
+  <a class="navbar-brand" href="{{ url_for('main.home') }}">{{ config.APP_NAME }}</a>
+  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
+    <span class="navbar-toggler-icon"></span>
+  </button>
+  <div class="collapse navbar-collapse" id="navbarNav">
+    <!-- Main Navigation -->
+    <ul class="navbar-nav">
+      <li class="nav-item active">
+        <a class="nav-link" href="{{ url_for('main.about') }}">About <span class="sr-only">(current)</span></a>
+      </li>
+      {% if current_user.is_authenticated %}
+      <li class="nav-item">
+        <a class="nav-link" href="{{ url_for('user.members') }}">Members</a>
+      </li>
+      {% endif %}
+    </ul>
+    <!-- Login/Logout -->
+    <ul class="navbar-nav ml-auto">
+      <li class="nav-item">
+        {% if current_user.is_authenticated %}
+        <a class="nav-link" href="{{ url_for('user.logout') }}">Logout</a>
+        {% else %}
+        <a class="nav-link" href="{{ url_for('user.login') }}">Login</a>
+        {% endif %}
+      </li>
+    </ul>
+  </div>
+</nav>