<style>
.talk-grid {
    table-layout: fixed;
    width: 100%;
}
.talk-grid > thead th:first-child {
    max-width: 5em;
}
td.talk {
    border: 1px solid;
}
</style>
<table class="talk-grid">
    <thead>
        <tr>
            <th></th>
            {% for room in rooms %}
                <th>{{room}}</th>
            {% endfor %}
        </tr>
    </thead>
    <tbody>
        {% for time in range (mintime, maxtime, timestep) %}
        <tr>
            <td>{{time//60}}:{{ "%02d" % (time % 60)}}</td>
            {% for talk in times[time / timestep * timestep] %}
                {% if talk == None %}
                    <td></td>
                {% elif not talk.skip %}
                    <td class="talk" rowspan="{{talk.duration // timestep}}">
                        <a href="#talk-{{talk.id}}"> {{talk.title}}</a>
                    </td>
                {% endif %}
        {% endfor %}
        </tr>
        {% endfor %}
    </tbody>
</table>
{# vim: set ft=jinja: #}
