How can i center a div and fill it with other divs so that it fits all the resolutions?

Question

I have been creating my website on a 1280*800 resolution computer and it works just fine until I use another computer with a different resolution. Please help me to solve the problem.

Answer 1

Use something like this:

#IDdiv {
margin-left:auto;
margin-right:auto;
width:80%; //for example
height:80%; //for example
}

It will look similar on all resolutions. This will center the div horizontally.