I want to create a preloader from a logo which should appear as if logo is being filled with a liquid. I want to use pure CSS.
While googling I found Filling a glass with Water. But the problem with it is that it only fills in rectangle form. The logo is black/white. I have it in all formats PNG, JPEG, SVG. Here is the pictorial representation in sprites:
https://i.stack.imgur.com/WeF9r.png
Also it must have transparent background like PNG.