CSS Background animation (Newbie needs help)

Question

https://code.sololearn.com/WEjskxLWiH2s/#js
Hey guys, check the code for all the details. I am really frustrated that I can't figure that one out.
Thanks for your attention!

Answer 1

I don't understand what you want fixed?

Answer 2

I want the background to be flashing too. Like the text does when you go in the field with the coursor

Answer 3

Change div to a href="bd" to target body when frame is clicked.
Put animation in #bd:target
https://code.sololearn.com/WARfAhZ56k11/?ref=app

Answer 4

Thanks, but I want the background only flashing when I hover over the field with the cursor.
I start to think that it's not possible without javascript

Answer 5

It's possible but not with body's background color. Create a full screen sibling element instead.

Answer 6

CSS3 now is powerful, many effects or animations run without JavaScript.
Here the code
https://code.sololearn.com/Wno07ujLUar5/?ref=app