I'm having a problem with my emails having irregular size fonts.  I create start with a Insert HTML / Plain Text email.  Then add in my content.  I'll select all the content and then set the Font to Verdana and the size to "2".  After I save the email I'll see that a new Div is added with the following code.  This is screwing up the look of my emails.  How can I stop this from automatically getting added?  I've tried changing the font-size to 11 but after saving and reopening I see a new Div is added with the 13 again.