Disclaimer: it’s more of an experiment than something anyone should use: browser performance might get worse when displaying too many images.<p>There is a tiny bit of Javascript to close the overlay with Esc, but other than that, it’s only made by (ab)using HTML and CSS.
Pressed a picture. The image shows. Pressed the back button. Nothing happens. Pressed the back button again. The browser left the site.<p>Chrome on Android.
Really nice showcase. While I like non-JS solutions, some kind of JavaScript is almost always needed when creating interactive elements to ensure accessibility.
Also not working here on FF/Linux. Tried Chrome and it's pretty nice. One odd thing I noticed: if I click on an image and then click left or right to go forward or back, after mouse down but before mouse up, the picture index shows "35/35" (it shows the correct position once I release the mouse button).