Dawn Theme: Turn options list into a dropdown menu

[SebastianL]

Currently my options are displayed as stacked blocks and I want to turn it into a dropdown menu. Does anyone know the code for this?

URL: https://pleasedontbetaken.myshopify.com/products/datacell?variant=43058961776873

Password: lutred

Thank you!

[Blizzard21]

this tutorial  works  if you  follow along and grab the code