HTML Cannot remove whole page “inside” border (body border?)

[PrincessBelle]

I'm developing a website and I suddenly noticed that in IE9 nearly only layout of mine has such issue (different from other websites that I recently browsed)There is a gray border around my page which I cannot remove.I already have \[code\]body{margin:0;padding:0;}\[/code\] and I tried \[code\]html,body{margin:0;padding:0;}\[/code\] but it still continued to exist.Here is a small screenshot

Help me remove this border please.