Question

建立网站时，我为导航栏设置了一个按钮。显示了该网页，但是在调整窗口大小时无法显示按钮。按照设计，应在导航栏尚未完全显示时显示。代码如下：

base.html

{% load bootstrap3 %}

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <title>Learning Log</title>

    {% bootstrap_css %}
    {% bootstrap_javascript %}
  </head>

  <body>

    <!-- Static navbar -->
    <nav class="navbar banbar-default navbar-static-top">
      <div class="container">

        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed"
                  data-toggle="collapse" data-targe="#navbar"
                  aria-expanded="false" aria-controls="navbar">
          </button>
          <a class="navbar-brand" href="{% url 'learning_logs:index' %}">Learning Log</a>
        </div>

        <div id="navbar" class="navbar-collapse collapse">
          <ul class="nav navbar-nav">
            <li><a href="{% url 'learning_logs:topics' %}">Topics</a></li>
          </ul>

          <ul class="nav navbar-nav navbar-right">
            {% if user.is_authenticated %}
              <li><a>Hello, {{ user.username }}.</a></li>
              <li><a href="{% url 'users:logout' %}">log out</a></li>
            {% else %}
              <li><a href="{% url 'users:register' %}">register</a></li>
              <li><a href="{% url 'users:login' %}">log in</a></li>
            {% endif %}
          </ul>
        </div><!--/.nav-collapse -->

      </div>
    </nav>

    <div class="container">

      <div class="page-header">
        {% block header %}{% endblock header %}
      </div>
      <div>
        {% block content %}{% endblock content %}
      </div>
    </div> <!-- /container -->
  </body>
</html>

Django-bootstrap3：导航栏上的按钮无法显示

0 个答案: