Alright, I've gone ahead and replaced the css background-image with a <picture> element, with fallbacks: <div class="imgbox center-fit"> <picture> <source sr

Alright, I've gone ahead and replaced the css background-image with a <picture> element, with fallbacks: <div class="imgbox center-fit"> <picture> <source srcset="files/webp/file.webp" type="image/webp"> <source srcset="files/file.jpg" type="image/jpg"> <img src="files/file.jpg" alt="Bunny!"> </picture> </div> Let me know if that works.