Hello,

I am a beginner on using CSS... why is that my output on my design on desktop computer becomes not good and in the right position when i tried to run it on my brother's laptop?
Is there anything i can about this matter? i mean how am i suppose to do a design that will perfectly display on both desktop and laptop without any changes on the output?

Any help will be apprecited.

I didn't find the right solution from the Internet.

References:
https://www.htmlvalidator.com/CSEForum/viewtopic.php?t=691
Teaser video production agency

Thank you.