python-gallery/gallery/templates/group.html

{% extends 'layout.html' %}

{% block header %}
    <img src="{{ url_for('static', filename='images/background.svg') }}" onload="imgFade(this)" style="opacity:0;">
{% endblock %}

{% block content %}
    <div class="app">
        <h1>Image Group</h1>
        <p>{{group_id}}</p>
    </div>
{% endblock %}