Inserer feuille css dans page xsl

Bonjour à tous,
je souhaterai insérer une feuille de style css dans une page xsl comme cela se fait dans une page html.
Voici mon code:

<?xml version="1.0" encoding="UTF-8" ?>

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt"
xmlns:user="urn:user-namespace-here"
version="1.0">

<msxsl:script language="JScript" implements-prefix="user"><![CDATA[
function GetNextValue(value) {
return (value +1);
}
]]></msxsl:script>


<xsl:template match="GetPropertiesResponse">

<TABLE id="parameters" background="#112233" style="font-weight:bold; WIDTH: 60%; POSITION: center; TOP: 0px; " align="left" cellSpacing="0" cellPadding="5" >
<xsl:for-each select="PropertyLists">


<xsl:variable name="itemName" select="@ItemName"/>

<TR border="0">
<xsl:for-each select="./Properties">

<xsl:choose>

<xsl:when test="@Name = 'description'">
<TD border="0">
<xsl:value-of select="Value"/>
</TD>
</xsl:when>

<xsl:when test="@Name = 'euInfo'">
<TD border="0" align="left" >
<xsl:choose>
<xsl:when test="../Properties[@Name = 'euType']/Value = 'enumerated'">
<xsl:choose>
<xsl:when test="../Properties[@Name = 'accessRights']/Value = 'readable'">
<xsl:choose>
<xsl:when test="../Properties[@Name = 'dataType']/Value = '11'">

<xsl:variable name ="value" select="../Properties[@Name = 'value']/Value" />

<xsl:choose>
<xsl:when test="../Properties[@Name = 'value']/Value = 'true'">
<xsl:for-each select="./ArrayOfString/string">
<xsl:if test="position()=2">
<xsl:value-of select="."/>
</xsl:if>
</xsl:for-each>
</xsl:when>

<xsl:otherwise>
<xsl:for-each select="ArrayOfString/string">
<xsl:if test="position()=1">
<xsl:value-of select="."/>
</xsl:if>
</xsl:for-each>
</xsl:otherwise>
</xsl:choose>
</xsl:when>

<xsl:otherwise>
<xsl:for-each select="ArrayOfString/string">
<xsl:if test="../../../Properties[@Name = 'value']/Value = position()- 1">
<xsl:value-of select="."/>
</xsl:if>
</xsl:for-each>
</xsl:otherwise>
</xsl:choose>
</xsl:when>

<xsl:otherwise>
<select onchange="ItemChange(this.id)">
<xsl:attribute name="id">
<xsl:value-of select="../@ItemName"/>
</xsl:attribute>

<xsl:for-each select="ArrayOfString/string">
<option>
<xsl:attribute name="value">
<xsl:value-of select="position() - 1"/>
</xsl:attribute>
<xsl:value-of select="."/>
</option>
</xsl:for-each>

</select>
</xsl:otherwise>
</xsl:choose>
</xsl:when>



<xsl:otherwise>
<xsl:choose>
<xsl:when test = "../Properties[@Name = 'accessRights']/Value = 'readable'">
<xsl:value-of select="../Properties[@Name = 'value']/Value"/>
</xsl:when>

<xsl:otherwise>
<input style="align:center" onchange="ItemChange(this.id)">
<!-- attributes are applied to the current parent element (i.e. 'input') -->
<xsl:attribute name="value">
<xsl:value-of select="../Properties[@Name = 'value']/Value"/>
</xsl:attribute>
<xsl:attribute name="id">
<xsl:value-of select="../@ItemName" />
</xsl:attribute>
</input>
</xsl:otherwise>
</xsl:choose>
</xsl:otherwise>

</xsl:choose>
</TD>
</xsl:when>

<xsl:when test="@Name = 'engineeringUnits'">
<TD border="0">
<xsl:value-of select="Value"/>
</TD>
</xsl:when>
</xsl:choose>
</xsl:for-each>
</TR>
</xsl:for-each>
<TR >
<TD></TD>
</TR>
<TR style="color:#005588">
<TD align="right" colspan="3" >
<Input type ="button" id="buttonApply" value ="Appliquer" onclick="WriteItems()" disabled="true" style="align:center; font-weight:bold; color:blue;" />
<Input type ="button" id="buttonCancel" value ="Annuler" onclick="history.back()" style="align:center; font-weight:bold; color:blue;" />
</TD>
</TR>
</TABLE>

</xsl:template>
</xsl:stylesheet>

J'ai déjà essayé d'ajouter des choses trouvées sur le net mais sans résultats jusqu'à présent. C'est ainsi que je me tourne une nouvelle fois vers vous.

Pourriez vous m'aider?