ad, providing a simple
reference point for any alterations you want to make to the family,
font, size, and capitalization style of any header part.
</p>

<h3 id="vertical-spacing" class="docs">Vertical placement and spacing of headers/footers</h3>

<p>
As explained in the section,
<a href="docprocessing.html#behaviour">Typesetting macros during document processing</a>,
the top and bottom margins of a mom document are the vertical start
and end positions of
<a href="definitions.html#running">running text</a>