body.mceContentBody {
font-family:Georgia,"Times New Roman","Bitstream Charter",Times,serif;
font-size:13px;
font-size-adjust:none;
font-style:normal;
font-variant:normal;
font-weight:normal;
line-height:19px;
}
in http://www.yoursite.com/wordpress/wp-includes/js/tinymce/themes/advanced/skins/wp_theme/content.css?ver=3241-1141
The 13 px font size controls the font in the WYSIWYG write box
Ok, this finally worked for me. It changed the default font size in the WYSIWYG text editor, according to the font style and size entered. The only catch is that I had to restart my browser (or empty the cache) in order for the changes to be visible. Simply forcing a refresh of the page didn’t seem to work and I almost gave up on the process. At long last, the horrible font used by the WordPress text editor is changed.
