This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Niels Leenheer
html5test.com
did:plc:fdu5alepkigblthylzkahr4f
DOOM fully rendered in CSS. Every surface is a <div> that has a background image, with a clipping path with 3D transforms applied. Of course CSS does not have a movable camera, so we rotate and translate the scene around the user.
2026-03-13T20:32:09.995Z