override K2 Frontend edit article

I am using the override system and it works great. The problem I have with the article editing screen in front-end, on this screen the override does NOT work.

How I can fix it?

Thanks,
excuse my English is google translator

What you mean by override system ? The override CSS file where you can add your own rules ? Front-end editor has own CSS styles and probably they can override this what you have in overrride.css

yes, that is. I use the override.css to change the css of K2 but with the article Editor in front-end does not work.

Editor has own styles and it will be probably hard to overwrite it, you can also look for some another editor.

sorry, maybe I have not explained well.
The problem I have with the pop-pup where does the editor not the editor itself.
What framework you want to change with the override in the attached image.

Excuse my English is google translator

The file

Ok I see image but still have no idea what is wrong here, could you give me some better description ? What is the problem on this view on image ?

I want to change the font and font size that is inside the red box

This styles are not defined in template but probably in editor stylesheet which is loaded higher in CSS hierarchy so it will be hard to override it easily but please contact with me via PM and provide me access - I need to look at this at firebug.