前端中返回顶部功能

  <div id="back-to-top">
        <i class="glyphicon glyphicon-arrow-up"></i>
    </div>

<link href="{% static 'blog/css/back-to-top.css' %}" rel="stylesheet">

#back-to-top {
    box-shadow: 5px 5px 5px #888888;
    border-radius: 2px;
    position: fixed;
    bottom: 70px;
    right: 70px;
    color: whitesmoke;
    background: #3ac57d;
    width: 50px;
    height: 50px;
    text-align: center;
}

#back-to-top i {
    font-size: 30px;
    margin: 10px auto;
}

 <script>
    $("#back-to-top").click(function () {
        window.scrollTo(0,0);
    });
 </script>