How to integrate CSS in XML file.

Here i m showing some xml file test like...........

<?xml version="1.0" encoding="ISO-8859-1"?>
<?xml-stylesheet type="text/css" href="catalog.css"?>
<CATALOG>
  <CD>
    <TITLE>Empire Burlesque</TITLE>
    <ARTIST>Bob Dylan</ARTIST>
    <COUNTRY>USA</COUNTRY>
  </CD>

</CATALOG>
In the above line i have mention there how to include css file reference with href tag
Now question is that how to declare the css property .
css file format here.

CATALOG
{
background-color: #ffffff;
width: 100%;
}
CD
{
display: block;
margin-bottom: 30pt;
margin-left: 0;
}
TITLE
{
color: #FF0000;
font-size: 20pt;
}
ARTIST
{
color: #0000FF;
font-size: 20pt;
}
COUNTRY
{
display: block;
color: #000000;
margin-left: 20pt;
}

Then its automatically worked with xml.
Thanks