I found a CSS animation snippet on Codepen, and would like to add it in my WordPress site for preloader animation, but I couldn't find any related help or plugin that would allow me to add a Preloader with custom CSS animation.
I tried googling, but all I could find was plugins that accepts "GIF animation" for preloader animation. But, I want to use "CSS animation" instead of "GIF animation".
P.S. I only have a moderate knowledge of WordPress.