absolute center for category list images

Hello:

I am trying to create one column, absolute center in the .categorylistboxcontent area regardless of the pixel resolution of different viewers so that my category images and titles are stacked vertically down the center of the box. I dont want this for all pages, and I have set up separate css files for these specific pages. Is the setting in the .categorylistboxcontents of the css or somewhere else?

Thanks

I see an attribute using firefox tools that says:

div.categoryListBoxContents

and under it:

style = width: 50%;

I think If I knew where to make that 100% for that css page only it would be a fix.

Any thoughts? I've tried about 20 things.

Any thoughts? The only thing that works is the margin setting in the css file but it doesnt work for different resolutions on monitors....

I cant figure out an absolute code.

Thanks