Change editor font and font size

check add_editor_style();

https://codex.www.ads-software.com/Function_Reference/add_editor_style

look into Twenty Ten for an example.

@alchymyth, this is seems to be what I am looking for. Thanks.

If you would please mark this thread as “resolved” it would be appreciated. Helps everyone keep better track of whose issues are still outstanding. Thanks!

Yes. Sure.

I got it working. I’ve written a small plug-in:

function add_style($content) {
        add_editor_style();
        return $content;
}
add_action('init', 'add_style');

Then I placed editor-style.css with following code in my theme:

body.mceContentBody {
    font: 16px/19px Ubuntu,Calibri,Tahoma,Georgia,"Times New Roman","Bitstream Charter",Times,serif;
}

body.mceContentBody pre {
    16px/19px Consolas,"Courier New",Courier;
}

and it worked.
So, again, thanks for helping me to figure this out.

Cool – thanks for sharing your solution.