Amend CKEditor text sizes without editing module

[a-ok]

Is there a way, without editing the module itself, to change the font sizes set in the CKEditor for h1, h2, h3 etc. They're just too big in proportion to the rest of the text. I'd like to be able to do it without amending the module in case of any updates.

Any thoughts?

[BitPoet]

That's what the custom editor css file config setting on the Input tab of CKEditor fields is for.

[tpr]

Perhaps I'm the only one who does this but I usually load the site's main css into ckeditor. This way the look is much closer to the final result, at least for font size, family, color etc.

If I need to exclude a style from ckeditor I use body:not(.cke) in css (if I remember right for the classname).