I want a way to create a command (or the equivalent) like
\boxspecifiedheight{8in}{This is some text.}
which uses 8 inches of vertical space. If the sentence was replaced by 5 or 6 sentences, that part of the code would also use 8 inches of text. The goal is to align text on the front and back of a 2-sided page without having to compute what to plug into vspace on my own.
Mark
\parbox[pos][height][contentpos]{width}{text}, https://en.wikibooks.org/wiki/LaTeX/Boxes – Zarko Mar 29 '18 at 16:44