I did a similar implementation before (2017) but for huge landscape background images (tweet with video): https://twitter.com/cheeaun/status/820821687239221249

I did a similar implementation before (2017) but for huge landscape background images (tweet with video): https://twitter.com/cheeaun/status/820821687239221249 https://twitter.com/cheeaun/status/820821687239221249 Commit with code: https://github.com/webuildsg/geekbrunch.sg/commit/b995205094262c74343a9d736dd747e3a7f0ca07 https://github.com/webuildsg/geekbrunch.sg/commit/b995205094... Now the site no longer uses this effect, but using another (much) cooler effect.