https://whispermind.github.io/Manhattan-Project/
U can run application using your IDE web-server extension, or use npm http-server package.
All the navigation is inside the princess-nav-button
There is some dispay issue in Safari browser, it seems Safari chache one-iteration gifs state, so they are displaying just for 1 time, i didn't have enough time to research the issue, so it would be better to use Chrome when testing the app