The paragraph that closes the block above the first crowded heading.
Crowded under the block above
The content this heading introduces sits forty pixels away.
The paragraph that closes the block above the second crowded heading.
Crowded a second time
The content this heading introduces sits forty pixels away.
The section above ends here, and a wrapped spacer follows it.
Forty pixels of spacer above
Twenty-four pixels below: the heading is bound to its own content.
The last block of the main content, eight pixels above the closing heading.