In Chrome you can play T-Rex game when offline

When there is no Internet connection or Internet has a problem in the Google Chrome browser then Chrome will tell you 'There is no Internet connection', also you will see a small Dinosaurus T-Rex.
If you hasn't known, T-Rex is a small game  in Chrome you  can only  play it when Offline or no internet connection.

To play Chrome T-Rex, use the Spacebar key to start and to play (jump).