what is the art style called that is commonly made in css?

Question

This art style has been popping up everywhere for the past few years, it's used a , most popular of which being the infographics show, bright side, all the other clickbaity channels also tv commercials. Its characterized by solid color layer shapes put over one another.

Answer 1

... Do you mean the Material Design Language?

https://material.io

If it isn't, we may need a tad more description or just a link to a sample art to identify the term used to describe it.