s">4. Header/footer separator rule</h4>

<p>
The header/footer separator rule is a modest horizontal rule,
set slightly below the header (or above the footer), that runs
the length of the
<a href="definitions.html#header">header</a>
and helps separate it visually from
<a href="definitions.html#running">running text</a>.  If
you don&#8217;t want the rule, you can turn it off.  If you want it,
but at a different vertical position relative to the header (or
footer), you can alter its placement.
</p>

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