Where to set the page background color?

[RobFerrari]

I can't find in the style manager where to set the page background color. I'm comparing two styles I have, one is transparent and the other is white, but can't find where to set it.

Thanks,
rob

[RobFerrari]

I found it by process of elimination, first glance "body" didn't seem like the place for outside border, but then I read the description.