CSS Validation Error

At the bottom of my style.css file, I have this xsl coding and I get an error when I am doing my CSS Validation. When I had it in the HTML, I received a validation error on that as well which is why I put it into the .css file.

When I had it in the html, it was as follows.

<script type="javascript" src="http://website.com/dn.js" xmlns:ext="urn:ext" xmlns:ms="urn:schemas-microsoft-com:xslt" xmlns:math="http://exslt.org/math"></script>

<script type="text/javascript" language="javascript" xmlns:ext="urn:ext" xmlns:ms="urn:schemas-microsoft-com:xslt" xmlns:math="http://exslt.org/math">


This is how it looks in my style.css file.

.style27 {
color: #3399FF;
font-size: 11px;
font-family: tahoma;
text-decoration:none

<xsl:stylesheet version="1.0"
xmlns:ms="urn:schemas-microsoft-com:xslt"
xmlns:math="http://exslt.org/math"
xmlns:ext="urn:ext">


Thanks,
Brad

When I had it in the html, it was as follows.

<script type="javascript" src="http://website.com/dn.js" xmlns:ext="urn:ext" xmlns:ms="urn:schemas-microsoft-com:xslt" xmlns:math="http://exslt.org/math"></script>

<script type="text/javascript" language="javascript" xmlns:ext="urn:ext" xmlns:ms="urn:schemas-microsoft-com:xslt" xmlns:math="http://exslt.org/math">HTML does not support namespaces; none of those xmlns attributes are valid in HTML. Even if you were using XML, I have no clue why you would want to declare namespace prefixes like that on a script element since that element can’t contain other elements.

This is how it looks in my style.css file.

.style27 {
color: #3399FF;
font-size: 11px;
font-family: tahoma;
text-decoration:none

<xsl:stylesheet version="1.0"
xmlns:ms="urn:schemas-microsoft-com:xslt"
xmlns:math="http://exslt.org/math"
xmlns:ext="urn:ext">You don’t put an XSL style sheet inside of a CSS file. XSL has its own file extensions (*.xsl or *.xslt) and media type (application/xml). Assuming that that tag were to go into an XSL file, you forgot to declare the namespace for the xsl prefix.