Toolbar is short when a user is NOT logged in. How to increase the width to the same size as when logged in?

Hi guys. Could you help me a bit please?
In the attachment you can see that I have short toolbar when Im NOT logged in and a long one, when Im in.
Could you please help me to make the short one longer , the same as when Im logged in?
I tried different ways - cant find a proper one. The problem occurs when I am changing a browser width, Toolbar is not changing relatively to the browser's border and to the rest content accordingly, however in "logged in" mode everything is fine.

Thanks in advance.