Hi, I'm the author of the rain effect (not of the website itself though).<p>You can see the original effect here[1], along with an explanation here[2].<p>If you like it, you can see a few more effects and experiments on my portfolio here[3], although it's been a couple of years now since I've done anything of the sort (that I can post publicly, that is).<p>[1] <a href="https://tympanus.net/Development/RainEffect/" rel="nofollow">https://tympanus.net/Development/RainEffect/</a><p>[2] <a href="https://tympanus.net/codrops/2015/11/04/rain-water-effect-experiments/" rel="nofollow">https://tympanus.net/codrops/2015/11/04/rain-water-effect-ex...</a><p>[3] <a href="http://lbebber.github.io/" rel="nofollow">http://lbebber.github.io/</a>