h-4.7">4.7 Whitespace handling in
attribute values</a></h2>

<p>In attribute values, user agents will strip leading and
trailing whitespace from attribute values and map sequences
of one or more whitespace characters (including line breaks) to
a single inter-word space (an ASCII space character for western
scripts). See <a href="http://www.w3.org/TR/REC-xml#AVNormalize">
Section 3.3.3</a> of <a href="#ref-xml">[XML]</a>.</p>

<h2><a name="h-4.8" id="h-4.8">4.8 Script and Style
elements</a></h2>

<p>In XHTML