CSS

Hello,
None of my css is updating. It only updates on one computer but it does not update on other computers.
How can I fix this
Thank you very much

I am trying to put a background picture on my website. I insert it. It works on my computer but when I go on another computer the background is not there.
I have looked in the forum but there is nothing on my problem.
Please help
Thank you

It sounds like a browser cache issue. Can you check in private browsing mode if the background is there?

Also, if you want other people to check anything, it would be really helpful if you included what should be checked. What’s the URL?