fisk/core/templates/wm/window.html

<magnet-block attract-distance="10" align-to="outer|center" class="floating-window">
  {% extends 'wm/panel.html' %}
  {% block heading %}
    {{ title }}
  {% endblock %}

  {% block panel_content %}
    {% include window_content %}
  {% endblock %}
</magnet-block>