The browser's `smaller` + `vertical-align: super` grows every line holding a
raised run by ~4px. LibreOffice keeps its raised run within 0.25pt of the plain
line's box (measured off its PDF), and both exporters already write
`style:text-position="super 58%"` — only the screen diverged. The same three
declarations already sit on the footnote anchor. Scoped to the paper, since a
header/footer zone carries the marks and its height is reserved off the page.
Measured: a table LibreOffice fits above the page edge now fits here too,
instead of moving to the next page.
Steffen Becker
c115b11c8d
