{# This is a publisher output template. Escape HTML so that it doesn't run when embedded in the host page. Use {varname} for variable substitution. #} <picture> <source media="(max-width: 480px)" srcset="{image_url_480}"> <source media="(min-width: 481px) and (max-width: 800px)" srcset="{image_url_800}"> <source media="(min-width: 801px)" srcset="{image_url_1200}"> <img src="{image_url}"> </picture>