by KsesoCss blog under Beerware licence if you can imagine, CSS will make it real Image from unknow other demos css: here, in codepen, and in my blog Please, resize the window and Scroll down & up Inside blur pure CSS
Inside blur: warning! Don´t use in a real work! This is only a Css play so that you can see the power of the Imagination and Css working together Now it's your turn, because I'm waiting to play with your demos