In the old days I was taught to create pages at 100% to fill any screen. Now the screens are so wide that it seems best to create the page at 1000px or so. A 100% page looks too stretched out on a wide screen. My question is how do you center the page on a wide screen once it is reduced to 1000px width. I see it done all the time but I can't seem to do it myself. My page is pushed to the left. What's the secret?