"Flash" lovelace card when it gets updated (Is it possible?)

Hi! I’m trying to figure out how to “flash” an card whenever it gets updated.
I did this on my other dashboard (running Domoticz) and it’s really nice.
Se below. When an entity gets updated it flashes (animated white).
Skärmklipp2

Is there any way to do this for a theme / template?

PS: Bear with me as I just started using/testing H.A … :slight_smile: