Station 3:
https://www.w3schools.com/python/trypython.asp?filename=demo_default
Station 5:
Caesar Cipher Decoder & Encoder Tool • RAW
Station 6:
https://www.w3schools.com/html/tryit.asp?filename=tryhtml_default
Final Step
https://aislindavis-7046.trinket.io/sites/python-lock-mini-exploratory