Thanks for the reply, but I'm still not able to set the font of the text body.

If I use EditorWysiwygModeCss, I don't know what css tag to use. I had a look in asp.css, but I can't figure out which part applies to the editor's text area.

I tried EditorBodyStyle but it did not work. (This property is not mentioned in the documentation by the way).

I used editor.EditorBodyStyle="background-color:tan;font-family:verdana,arial,helvetica;font-size:11px"