Change font of Redactor II How do I change the default font (Trebuchet) of Redactor II to Arial, for instance?

I don't know how to override the default CSS of Redactor. Please help.

Tnx in advance!
You could use the Control Panel CSS plugin that lets you add arbitrary css to the control panel.

Then you could target all redactor fields like so:

.redactor-layer * {
    font-family: 'Arial';
}


EDIT slightly more troubling is that you are getting Trebuchet in the first place, it should be Arial anyway.

UPDATE it turns out this change came about in a recent Craft update (2.6.2963) that updated Redactor II from 1.3.2 to 2.2. My best guess is that it crept in to the Redactor II 2.0 release, which also included the change to the toolbar icons.