Can anyone show me how to do these interaction animation?

Interactive Components Questions
#1

I has been struggle to figuring out how to recreate these interaction animation!
Here some example!

  1. Spining Close Button
    Spin Close Button on Vimeo
  2. Auto hide bar
    Auto hide bar on Vimeo
  3. Transparent Slider
    Transparent Slider on Vimeo

If anyone can recorded tutorial I would be much appreciate about!
Thank you for reading this post.

#2

It’s quicker to create the demos than to explain in text, haha, so here you go:

Let me know if you have any questions.