Let's take a closer look at these two unique selector examples. In the first scenario, we have an ordered list OL containing a single list item LI:
OL > LI:only-child
Now, let's consider the second example where we have an ordered list OL that is itself a unique child, with the only child being a list item LI:
!OL > LI:only-child
Although the tree structures represented by these selectors are identical, the focus of each selector differs due to their subjects.
I might need some clarification on this distinction. Could you provide me with an example for better understanding?