Can anybody conceptually explain to me how the following hooks are supposed to work in terms of CSS:
I'm basically adding adding a graphic with rounded corners above and below the primary and secondary asides.
For above and between the left margin needs to include the width of #container but not for below. Any ideas why?
Other inconsistencies exist. Why do these three hooks behave differently and not as simply as one might expect?
How do they even work in the first place?
I'm just looking for an explanation of the logic but can paste code if necessary.