a figure inside prose

The caption below is a plain figcaption. Nothing on the entry names it; the lightbox reads the sibling once at open. Click the image, then press ? for the keys that work right now, i for the rail (the site's own inspector beside the media: details, actions, a field), h to hide the chrome. While it is open the address carries #lb=id: a reload lands on the same image, close strips it, and Back leaves the page the way it always does.

Every trigger is a link to the original, so the page works before hydration and a middle click still opens the file.