Gradient border around an element?

Is it possible to code a gradient border around an element in velo or do I have to add a costum css code? I’ve been looking so long for this topic but didn’t find anything.
I hope someone can help me…

https://www.wix.com/velo/forum/coding-with-velo/faked-repeater-with-3d-parallax-animated-gradients-and-more

https://www.wix.com/velo/forum/coding-with-velo/cool-repeaters-with-css-in-wix-code

Can you give me clear instructions please?

@kelvineng
Your instructions you will find here…
https://micku7zu.github.io/vanilla-tilt.js/

-Search for the related NPM-package and install it.
-Generate your code.
-This will just work either in an HTML-Component or you create your own CUSTOM-ELEMENT (possible just on FREE-SITES).