{% if items.exists %}
{% load thumbnail %}

<ul class="gallery">
    {% for item in items %}
    <li>
      <a href="{{item.link}}">
        <img src="{% thumbnail item.image.rel_path '1020x376' %}"
             width="1020" height="376"
             alt="{{item.title}}"/>
      </a>
    </li>
    {% endfor %}
</ul>
{% endif %}