An Advent calendar lets you count the days until Christmas. Why not open a digital door? This PowerApp creates a digital Advent calendar to count the days until Christmas. In my example there is only a quote behind the doors. But there are no limits to your imagination as you can also add images, links or HTML-formatted text.
Example:
Advent Calendar V1 
Advent Calendar V1 Door
Advent Calendar V2
Instructions for setup and configuration: Office-Power-Tools/Advent Calendar App at master · Louicha/Office-Power-Tools (github.com)
Have a wonderful Christmas season! 🎄
