Why my anime does not run ?:((

Question

I am beginer in designing web sites and i want to develop a site that shows me my progress ! I want my div animate from 0% to 50% of the big div's width! But the anime does not run! What is the problem?
https://code.sololearn.com/WQzVYrPcm2GI/?ref=app
Pp=python progress
Sorry
Im a little bad in speaking English 😅

Answer 1

Check this correction👇👇👇
https://code.sololearn.com/WXu0F8At1mTq/?ref=app

Answer 2

Your code:

animation-name: progbax;
animation-duration:2sec;

Corect code:

animation-name: progbox;
animation-duration:2s;