As you can see on the front page is www.unitedstudy.co.uk
and EVERY page but it does not shrink like the homepage is www.unitedstudy.co.uk/apply/
. whenever you scroll down, the header bounces after scrolling exposing a white background under it for a moment and whenever you scroll up.
On mobile, it also takes up way too much space, i would like to move it like this