Summary
As Christmas approaches, it’s time to bring a little joy and festivity to your SharePoint environment with a fun and interactive web part, Advent Calendar. This engaging Christmas-themed game features an Advent Calendar with 24 doors that open to reveal a surprise.
Advent Calendar is built using SharePoint Framework (SPFx), TypeScript, React, and Fluent UI React, making it easy to integrate into your SharePoint site.
https://github.com/pnp/sp-dev-fx-webparts/tree/main/samples/react-advent-calendar
Important Note
This is a simple untested and unsupported sample. It is provided as is and without any warranty. It does contain bugs and is not intended for production use. :)