font size in text editor

Hi,
I have found this function, which adjusts the width of the text editor:

add_filter( 'admin_footer', 'fulleditorwidth', 99 );
function fulleditorwidth() { 
?>
    <style type="text/css">
    #wp-content-editor-container {width: 960px!important;}
    </style>

<?php } 

Is there a way to use the same function to change the font size and font family too?

Yannis