Sorry if this is basic and stupid (just a lowly graphics student). Can anyone help me identify how to make a background like the one on this site ransomriggs.com/about.php
It looks like a static background image with some kind of low opacity foreground image, and a CSS animated component in the clouds and airplane, but I don't know if I'm right in that. I'd love to be able to replicate the effect/learn how to do this.
Thank you for putting up with my student-ness!