templates/home_base.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title>{% block title%}首页{% endblock %}</title>

    <!-- 引入静态资源 -->
    <link rel="stylesheet" type="text/css" href="{{url_for('static',filename='css/style.css')}}"/>
    <link rel="stylesheet" type="text/css" href="{{url_for('static',filename='css/body.css')}}"/>
</head>
<body>
<div class="container">
    <section id="content">
        {% block content %}

        {% endblock %}
    </section>
</div>

<br><br>

</body>
</html>