This site displays information about orders in online store. It refreshes every 10 seconds and change color of score according to waiting time. This site displays correctly not only on standard types of devices (laptops, smartphones and tablets), but also on large wall-mounted screens.
Example of launch on Linux, Python 3.5:
gunicorn server:app
Open page localhost:8000 in browser.
The code is written for educational purposes. Training course for web-developers - DEVMAN.org