Some CSS info

[cristi 2]

Hello everybody!

I recently finished my CSS course, and I found on the net some CSS examples, but I don't really understand some of.

I marked them with a *, if someone can explain them to me, thanks.

mask-image: linear-gradient(90deg*, rgba(255, 255, 255, 0) 0%*, #ffffff 25%*, #ffffff 75%*, rgba(255, 255, 255, 0) 100%*);

box-shadow: 0 0 25px rgba(0, 0, 0, 0.1), inset* 0 0 0px rgba(255, 255, 255, 0.6);
}