I have added custom css classes in the past by uploading a css file and an xml file to the portal. I am in dnn 5.2 and this does not seem to work any more. Anyone have any ideas why?

I'm not sure what you are doing.

There is a portal.css file in /Portals/N/. You can edit it. The easiest way is to edit on the Admin, Site Settings page.

I don't know which xml file you mean.

That didn't work. What I am trying to do is add custom classes that will show up in the drop down in the text/html module.

If you are referring to the dropdowns in the FCK editor, take a look at these tutorials:

• How to change the FCK Editor Skin in DotNetNuke
• FCK Editor CSS Skin Styles Preview in DotNetNuke
• FCK Editor Formatting Style Definitions
• FCK Editor HTML Templates
• FCK Editor Custom Toolbars and Security Roles
• FCK Editor Further Configuration Options
• DotNetNuke 5 Community Edition HTML Module Content Staging Workflow
• Bad Practices when working with the Text / HTML module
• Styling and formatting in the Text / HTML module
  (skinning)
• Styling and formatting (part 2) – Text / HTML module and FCKEditor
  (skinning)