navi/templates/error/404.html

{% extends 'base/base.html' %}
{% block content %}
<div class="ui vertical stripe segment">
    <div class="ui center aligned text container">
        <h1 class="ui error header">404</h1>
        <h2>啊咧？页面不存在喏！(>_<)</h2>
        <a class="ui basic button" href="/"><i class="arrow left icon"></i>回到首页</a>
    </div>
</div>
{% endblock %}