Practice or demo?

I have been taking one of the courses on here, and I was just wondering if there is a demo, or practice page /link? If not is there a good website or app that anyone would recommend for practice. I just want something that I can play around on. I know very little to nothing about coding, so anything would help.
Thank you!

At the end of every major part of the curriculum is a section that includes practice projects.

Alright awesome, Thank you!