Can’t stand courier? Use this to change your font. Paste into your functions.php

 
function change_editor_font(){ 
echo "<style type='text/css'> 
#editorcontainer textarea#content { 
font-family: Monaco, Consolas, \"Andale Mono\", \"Dejavu Sans Mono\", monospace; 
font-size:14px; 
color:#333;
} 
</style>"; 
} add_action("admin_print_styles", "change_editor_font");