Fix padding-top and padding-bottom 0px values for IE9 and in some cases for IE8

It happend various times that padding-top and padding-bottom on the section where '0px' and the height of the section wasn't correct. If this is the case, it's fine to use the global configuration for padding-top/padding-bottom.

Edit: ignore the first two commits, rebasing was going wrong, but the end result is good.