XSLT » xsl:preserve-space » elements="names"
The mandatory elements attribute is a white-space delimited list of the names of the elements in which all of the white-space nodes must not be removed. You can also use generic names with wild cards.
The mandatory elements attribute is a white-space delimited list of the names of the elements in which all of the white-space nodes must not be removed. You can also use generic names with wild cards.