Using Cascading Style Sheets in Campaign Documents
If you want to use a Cascading Style Sheet (CSS) with an HTML document hosted by Oracle Responsys, you can either embed the CSS document directly in the HTML document or specify the CSS document using an absolute URL.
To use the second option, you must host the CSS document yourself, for example, on your website). Uploading the document into Oracle Responsys adds extra HTML code that makes the style sheet unusable.