you can use the skin.xml file here is an example i used for the privacy token. The custom class is called footerLinks

skin.css

A.footerLinks, A.footerLinks:link, A.footerLinks:visited, A.footerLinks:active
{   
    font-weight: normal;
    font-size: 10px;
    color: #444444;
    font-family: Verdana, Arial, Helvetica, sans-serif;
    text-decoration: none;   
}
A.footerLinks:hover
{
        text-decoration: underline;
}

skin.xml

<Objects>
 <Object>
    <Token>[PRIVACY]</Token>
    <Settings>
      <Setting>
        <Name>CssClass</Name>
        <Value>footerLinks</Value>
      </Setting>
    </Settings>
  </Object>
</Objects>

thanks for your reply Max.  you are taking about attributes of token that can be defined in the .xml file. How about if i have [MYLINK] token defined in the .html file and upon paring when DNN generates .ascx file i want this token to map to /admin/skins/MyLink.ascx file.

Lets take [LINKS] token, this is what you get in the .ascx file upon parsing. look at the source for this tag ,  i can only define attributes of the tag in skin.xml file not the source of this tag.

<%@ Register TagPrefix="dnn" TagName="LINKS" Src="~/Admin/Skins/Links.ascx" %>

"<dnn:LINKS runat="server" id="dnnLINKS" />" 

in the same way this is want i want parser to produce upon parsing