I have been customizing my portal through a custom style sheet
overriding some of the SP and WSS classes. Currently I am stumped on
adding a border around the web parts.

I modified the following class .ms-WPBorder but this only affected
certain web parts such as the content web part but had no affect on a
list web part.

Does anyone have any suggestion on which class to modify to get the
changes to apply to all web parts.