 which they occur.</p>

<p>Attribute values within literal result elements are treated as attribute value templates:
they may contain string expressions enclosed between curly braces. For the syntax of 
string expressions, see <strong><a href="#xsl:value-of">xsl:value-of</a></strong> above.</p>

<p>Where the output is HTML, certain formatting elements are recognised as empty
 elements: these are AREA, BASEFONT, BR, COL, FRAME, HR, IMG, INPUT, ISINDEX,
 LINK, META, and SYSTEM (in either upper or lowe