Little css tweaks
Created originally on Bitbucket by kostialopuhin (Konstantin Lopukhin)
Was already merged in Bitbucket before import, marked as merged by the import user
Mostly to fix the positioning of fixed menu (now it is positioned relative to the right border of the window), also added some tweaks - maybe it was done like this for a reason, than only b72955d20598 is really relevant. Checked in Chome and Firefox, screenshot after: and before: