Rich Text Field Not Displaying On Webpage

I have a form with a Rich Text Field that I am trying to display as a java applet (also tried best fit for OS). When I load the form without a css the field displays fine. When I add the css design the field will not display. I looked at the page source and none of the code has changed. There are no javascript errors on the page. Any ideas?

Subject: Rich Text Field Not Displaying On Webpage

Can you show the source with the CSS? Something must have changed.