<template> : mode

Standard excerpt:

Both xsl:template and xsl:apply-templates have an optional mode attribute. If xsl:template does not have a match attribute, it must not have a mode attribute. If an xsl:apply-templates element has a mode attribute, then it applies only to those template rules from xsl:template elements that have a mode attribute with the same value; if an xsl:apply-templates element does not have a mode attribute, then it applies only to those template rules from xsl:template elements that do not have a mode attribute.
Examples (xslt:xml): Overview
20:1 87:8 88:8 89:8 90:8 91:8 92:8

Interactive xlab: