Why Solo don't support some CSS animation.

Question

I made a animation using html,css and js but when I click on run it showing error but when I open in my laptop it run perfectly.
Please help me.
Thank you !!!!!

Answer 1

Can you please share the code?

Answer 2

It's to big dude.

Answer 3

Well, maybe it's because sololearn is not a modern browser like Chrome or Firefox.