Compare the two codes! Can't you see the difference, my sweet ?  I have marked the errors!
Did I bother with this for nothing?
Your new background is very beautiful! Is this your edit too? You are very good at editing pictures. You have a really good sense of it. Absolutely impossible that you can't put a simple code on your page. I don't believe it.
Come on my love!

I was surprised...What causes it?

Hi love ... still not a good result with a boomer background ... will probably go back to my old one .. maybe each account needs a special individualized code that works only for them ???

That can not be possible. I've done a million css codes, never had any problems. Maybe you have a problem with your settings...