<div>
<img alt="alt text" src="{% static 'path/to/image@700.png' %}" srcset="{% static 'path/to/image@200px.png' %} 200w, {% static 'path/to/image@400px.png' %} 400w, {% static 'path/to/image@600px.png' %} 600w" />
<p>This is the caption text.</p>
</div>
