3 ms·How is it done? I see a couple of css transitions but there must be some js involved as well?by ollysb 12y agoHow is it done? I see a couple of css transitions but there must be some js involved as well?Raphmedia 12y agoYes. They linked the scale of the image (CSS) to the scroll wheel with a bit of JavaScript.Igglyboo 12y agoIt's a large div with a ton of canvases inside, the scroll wheel is also linked to a css transition on the div the scales it outwards.