istance between the two rules is 2 points, measured
from the bottom edge of the upper rule to the top edge of the lower
one.
</p>

<p>
If you wish to change the distance of the double underscore from
the baseline, use the optional argument <kbd>&lt;distance below
baseline&gt;</kbd> (with a unit of measure), e.g.,

<pre>
    .UNDERSCORE2 3p "Unmonitored monopolies breed high prices and poor products."
</pre>

which places the upper edge of the first rule of the double
underscore 3 points below the
<a href="d